Finding the Fourth Proportional to 86,622.75, 129,985.97 and 37,374.75
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Solution
The fourth proportional to 86,622.75, 129,985.97 and 37,374.75 is: 56,084.49
Step by Step Solution
- Step 1: Write the proportion equation
86,622.75 : 129,985.97 = 37,374.75 : x - Step 2: Convert to fraction form
86,622.75/129,985.97 = 37,374.75/x - Step 3: Cross multiply
86,622.75x = 129,985.97 × 37,374.75 - Step 4: Simplify right side
86,622.75x = 4,858,192,945.38 - Step 5: Solve for x
x = 4,858,192,945.38/86,622.75 - Step 6: Final answer
x = 56,084.49
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1.5x scale
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.