Finding the Fourth Proportional to 86,481.18, 129,681.06 and 44,381.46
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Solution
The fourth proportional to 86,481.18, 129,681.06 and 44,381.46 is: 66,551.30
Step by Step Solution
- Step 1: Write the proportion equation
86,481.18 : 129,681.06 = 44,381.46 : x - Step 2: Convert to fraction form
86,481.18/129,681.06 = 44,381.46/x - Step 3: Cross multiply
86,481.18x = 129,681.06 × 44,381.46 - Step 4: Simplify right side
86,481.18x = 5,755,434,777.15 - Step 5: Solve for x
x = 5,755,434,777.15/86,481.18 - Step 6: Final answer
x = 66,551.30
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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.