Finding the Fourth Proportional to 87,346.62, 120,537.72 and 49,620.87
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Solution
The fourth proportional to 87,346.62, 120,537.72 and 49,620.87 is: 68,476.45
Step by Step Solution
- Step 1: Write the proportion equation
87,346.62 : 120,537.72 = 49,620.87 : x - Step 2: Convert to fraction form
87,346.62/120,537.72 = 49,620.87/x - Step 3: Cross multiply
87,346.62x = 120,537.72 × 49,620.87 - Step 4: Simplify right side
87,346.62x = 5,981,186,534.22 - Step 5: Solve for x
x = 5,981,186,534.22/87,346.62 - Step 6: Final answer
x = 68,476.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.