Finding the Fourth Proportional to 71,482.19, 107,247.17 and 27,121.73
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Solution
The fourth proportional to 71,482.19, 107,247.17 and 27,121.73 is: 40,691.65
Step by Step Solution
- Step 1: Write the proportion equation
71,482.19 : 107,247.17 = 27,121.73 : x - Step 2: Convert to fraction form
71,482.19/107,247.17 = 27,121.73/x - Step 3: Cross multiply
71,482.19x = 107,247.17 × 27,121.73 - Step 4: Simplify right side
71,482.19x = 2,908,728,116.16 - Step 5: Solve for x
x = 2,908,728,116.16/71,482.19 - Step 6: Final answer
x = 40,691.65
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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.