Finding the Fourth Proportional to 87,446.48, 120,687.18 and 49,713.44
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Solution
The fourth proportional to 87,446.48, 120,687.18 and 49,713.44 is: 68,610.82
Step by Step Solution
- Step 1: Write the proportion equation
87,446.48 : 120,687.18 = 49,713.44 : x - Step 2: Convert to fraction form
87,446.48/120,687.18 = 49,713.44/x - Step 3: Cross multiply
87,446.48x = 120,687.18 × 49,713.44 - Step 4: Simplify right side
87,446.48x = 5,999,774,881.70 - Step 5: Solve for x
x = 5,999,774,881.70/87,446.48 - Step 6: Final answer
x = 68,610.82
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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.