Finding the Fourth Proportional to 86,619.60, 129,830.76 and 36,668.52
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Solution
The fourth proportional to 86,619.60, 129,830.76 and 36,668.52 is: 54,961.02
Step by Step Solution
- Step 1: Write the proportion equation
86,619.60 : 129,830.76 = 36,668.52 : x - Step 2: Convert to fraction form
86,619.60/129,830.76 = 36,668.52/x - Step 3: Cross multiply
86,619.60x = 129,830.76 × 36,668.52 - Step 4: Simplify right side
86,619.60x = 4,760,701,819.68 - Step 5: Solve for x
x = 4,760,701,819.68/86,619.60 - Step 6: Final answer
x = 54,961.02
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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.