Finding the Fourth Proportional to 86,516.26, 129,793.60 and 26,553.06
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Solution
The fourth proportional to 86,516.26, 129,793.60 and 26,553.06 is: 39,835.49
Step by Step Solution
- Step 1: Write the proportion equation
86,516.26 : 129,793.60 = 26,553.06 : x - Step 2: Convert to fraction form
86,516.26/129,793.60 = 26,553.06/x - Step 3: Cross multiply
86,516.26x = 129,793.60 × 26,553.06 - Step 4: Simplify right side
86,516.26x = 3,446,417,248.42 - Step 5: Solve for x
x = 3,446,417,248.42/86,516.26 - Step 6: Final answer
x = 39,835.49
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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.