70 is what percent of 8720 - 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 8720 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 8720, so we can write it down as 100%=8720.
4. We know, that x% equals 70 of the output value, so we can write it down as x%=70.
5. Now we have two simple equations:
1) 100%=8720
2) x%=70
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%=8720/70
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 70 is what percent of 8720

100%/x%=8720/70
(100/x)*x=(8720/70)*x       - we multiply both sides of the equation by x
100=124.57142857143*x       - we divide both sides of the equation by (124.57142857143) to get x
100/124.57142857143=x
0.80275229357798=x
x=0.80275229357798

now we have:
70 is 0.80275229357798% of 8720