Finding the Fourth Proportional to 71,454.80, 107,121.72 and 27,057.08
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Solution
The fourth proportional to 71,454.80, 107,121.72 and 27,057.08 is: 40,562.72
Step by Step Solution
- Step 1: Write the proportion equation
71,454.80 : 107,121.72 = 27,057.08 : x - Step 2: Convert to fraction form
71,454.80/107,121.72 = 27,057.08/x - Step 3: Cross multiply
71,454.80x = 107,121.72 × 27,057.08 - Step 4: Simplify right side
71,454.80x = 2,898,400,947.78 - Step 5: Solve for x
x = 2,898,400,947.78/71,454.80 - Step 6: Final answer
x = 40,562.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.