Finding the Fourth Proportional to 86,553.42, 129,836.70 and 23,372.62
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Solution
The fourth proportional to 86,553.42, 129,836.70 and 23,372.62 is: 35,060.70
Step by Step Solution
- Step 1: Write the proportion equation
86,553.42 : 129,836.70 = 23,372.62 : x - Step 2: Convert to fraction form
86,553.42/129,836.70 = 23,372.62/x - Step 3: Cross multiply
86,553.42x = 129,836.70 × 23,372.62 - Step 4: Simplify right side
86,553.42x = 3,034,623,851.15 - Step 5: Solve for x
x = 3,034,623,851.15/86,553.42 - Step 6: Final answer
x = 35,060.70
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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.