Finding the Fourth Proportional to 91,452.11, 126,208.81 and 51,163.47
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Solution
The fourth proportional to 91,452.11, 126,208.81 and 51,163.47 is: 70,608.33
Step by Step Solution
- Step 1: Write the proportion equation
91,452.11 : 126,208.81 = 51,163.47 : x - Step 2: Convert to fraction form
91,452.11/126,208.81 = 51,163.47/x - Step 3: Cross multiply
91,452.11x = 126,208.81 × 51,163.47 - Step 4: Simplify right side
91,452.11x = 6,457,280,033.13 - Step 5: Solve for x
x = 6,457,280,033.13/91,452.11 - Step 6: Final answer
x = 70,608.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.