Finding the Fourth Proportional to 91,147.92, 125,769.06 and 60,884.70
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Solution
The fourth proportional to 91,147.92, 125,769.06 and 60,884.70 is: 84,010.82
Step by Step Solution
- Step 1: Write the proportion equation
91,147.92 : 125,769.06 = 60,884.70 : x - Step 2: Convert to fraction form
91,147.92/125,769.06 = 60,884.70/x - Step 3: Cross multiply
91,147.92x = 125,769.06 × 60,884.70 - Step 4: Simplify right side
91,147.92x = 7,657,411,487.38 - Step 5: Solve for x
x = 7,657,411,487.38/91,147.92 - Step 6: Final answer
x = 84,010.82
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1.5x scale
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.