What is 0.686 percent of 72 - 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 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 is 100%, so we can write it down as 72=100%.
4. We know, that x is 0.686% of the output value, so we can write it down as x=0.686%.
5. Now we have two simple equations:
1) 72=100%
2) x=0.686%
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/x=100%/0.686%
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 0.686% of 72

72/x=100/0.686
(72/x)*x=(100/0.686)*x       - we multiply both sides of the equation by x
72=145.77259475219*x       - we divide both sides of the equation by (145.77259475219) to get x
72/145.77259475219=x
0.49392=x
x=0.49392

now we have:
0.686% of 72=0.49392