What is 4.5 percent of 72.8 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 72.8 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 72.8 is 100%, so we can write it down as 72.8=100%.
4. We know, that x is 4.5% of the output value, so we can write it down as x=4.5%.
5. Now we have two simple equations:
1) 72.8=100%
2) x=4.5%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
72.8/x=100%/4.5%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 4.5% of 72.8

72.8/x=100/4.5
(72.8/x)*x=(100/4.5)*x       - we multiply both sides of the equation by x
72.8=22.222222222222*x       - we divide both sides of the equation by (22.222222222222) to get x
72.8/22.222222222222=x
3.276=x
x=3.276

now we have:
4.5% of 72.8=3.276