That would be about right. It depends on the industry you work in. But on average that'd be about right.
Consider though that the cost of living in australia is higher than just about every other western nation. We pay almost twice what you do for fuel and other basics like energy supply and phone/communications. Groceries are very expensive here and our public transport system is very poor.
On the upside, our public health system is a lot better than the US (in my understanding). Our social services (whether you like it or not) support those not able to work for one reason or another.
On the other downside, we get taxed pretty heavily. eg Dazza loses almost half of what he earns to the taxman, so if you're not earning uber amounts of money and just fall into what the gov describes as the high income bracket, you end up worse off than low income earners because you get no benefits what so ever from the gov.
All countries run their finances differently. It's important to look at the big picture. Not just a snap shot.
Surely I don't have to explain that to you smart cookies.