Finding the Fourth Proportional to 86,368.20, 129,565.26 and 27,197.70
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Solution
The fourth proportional to 86,368.20, 129,565.26 and 27,197.70 is: 40,800.63
Step by Step Solution
- Step 1: Write the proportion equation
86,368.20 : 129,565.26 = 27,197.70 : x - Step 2: Convert to fraction form
86,368.20/129,565.26 = 27,197.70/x - Step 3: Cross multiply
86,368.20x = 129,565.26 × 27,197.70 - Step 4: Simplify right side
86,368.20x = 3,523,877,071.90 - Step 5: Solve for x
x = 3,523,877,071.90/86,368.20 - Step 6: Final answer
x = 40,800.63
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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.