Finding the Fourth Proportional to 89,008.62, 133,512.59 and 36,418.09
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Solution
The fourth proportional to 89,008.62, 133,512.59 and 36,418.09 is: 54,626.99
Step by Step Solution
- Step 1: Write the proportion equation
89,008.62 : 133,512.59 = 36,418.09 : x - Step 2: Convert to fraction form
89,008.62/133,512.59 = 36,418.09/x - Step 3: Cross multiply
89,008.62x = 133,512.59 × 36,418.09 - Step 4: Simplify right side
89,008.62x = 4,862,273,276.02 - Step 5: Solve for x
x = 4,862,273,276.02/89,008.62 - Step 6: Final answer
x = 54,626.99
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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.