Finding the Fourth Proportional to 86,161.88, 129,252.08 and 36,247.05
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Solution
The fourth proportional to 86,161.88, 129,252.08 and 36,247.05 is: 54,374.47
Step by Step Solution
- Step 1: Write the proportion equation
86,161.88 : 129,252.08 = 36,247.05 : x - Step 2: Convert to fraction form
86,161.88/129,252.08 = 36,247.05/x - Step 3: Cross multiply
86,161.88x = 129,252.08 × 36,247.05 - Step 4: Simplify right side
86,161.88x = 4,685,006,696.98 - Step 5: Solve for x
x = 4,685,006,696.98/86,161.88 - Step 6: Final answer
x = 54,374.47
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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.