43.5 is what percent of 216 - 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 216 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 100% equals 216, so we can write it down as 100%=216.
4. We know, that x% equals 43.5 of the output value, so we can write it down as x%=43.5.
5. Now we have two simple equations:
1) 100%=216
2) x%=43.5
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:
100%/x%=216/43.5
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 43.5 is what percent of 216

100%/x%=216/43.5
(100/x)*x=(216/43.5)*x       - we multiply both sides of the equation by x
100=4.9655172413793*x       - we divide both sides of the equation by (4.9655172413793) to get x
100/4.9655172413793=x
20.138888888889=x
x=20.138888888889

now we have:
43.5 is 20.138888888889% of 216