Finding the Fourth Proportional to 86,472.26, 129,712.29 and 26,496.42
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Solution
The fourth proportional to 86,472.26, 129,712.29 and 26,496.42 is: 39,745.82
Step by Step Solution
- Step 1: Write the proportion equation
86,472.26 : 129,712.29 = 26,496.42 : x - Step 2: Convert to fraction form
86,472.26/129,712.29 = 26,496.42/x - Step 3: Cross multiply
86,472.26x = 129,712.29 × 26,496.42 - Step 4: Simplify right side
86,472.26x = 3,436,910,729.22 - Step 5: Solve for x
x = 3,436,910,729.22/86,472.26 - Step 6: Final answer
x = 39,745.82
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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.