Finding the Fourth Proportional to 88,972.68, 122,781.66 and 48,685.68
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Solution
The fourth proportional to 88,972.68, 122,781.66 and 48,685.68 is: 67,185.89
Step by Step Solution
- Step 1: Write the proportion equation
88,972.68 : 122,781.66 = 48,685.68 : x - Step 2: Convert to fraction form
88,972.68/122,781.66 = 48,685.68/x - Step 3: Cross multiply
88,972.68x = 122,781.66 × 48,685.68 - Step 4: Simplify right side
88,972.68x = 5,977,708,608.63 - Step 5: Solve for x
x = 5,977,708,608.63/88,972.68 - Step 6: Final answer
x = 67,185.89
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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.