Finding the Fourth Proportional to 91,031.97, 136,518.42 and 34,869.09
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Solution
The fourth proportional to 91,031.97, 136,518.42 and 34,869.09 is: 52,292.32
Step by Step Solution
- Step 1: Write the proportion equation
91,031.97 : 136,518.42 = 34,869.09 : x - Step 2: Convert to fraction form
91,031.97/136,518.42 = 34,869.09/x - Step 3: Cross multiply
91,031.97x = 136,518.42 × 34,869.09 - Step 4: Simplify right side
91,031.97x = 4,760,273,073.64 - Step 5: Solve for x
x = 4,760,273,073.64/91,031.97 - Step 6: Final answer
x = 52,292.32
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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.