Finding the Fourth Proportional to 71,808.21, 107,761.52 and 25,061.09
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Solution
The fourth proportional to 71,808.21, 107,761.52 and 25,061.09 is: 37,608.80
Step by Step Solution
- Step 1: Write the proportion equation
71,808.21 : 107,761.52 = 25,061.09 : x - Step 2: Convert to fraction form
71,808.21/107,761.52 = 25,061.09/x - Step 3: Cross multiply
71,808.21x = 107,761.52 × 25,061.09 - Step 4: Simplify right side
71,808.21x = 2,700,620,487.14 - Step 5: Solve for x
x = 2,700,620,487.14/71,808.21 - Step 6: Final answer
x = 37,608.80
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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.