Finding the Fourth Proportional to 87,717.70, 131,557.65 and 27,750.88
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Solution
The fourth proportional to 87,717.70, 131,557.65 and 27,750.88 is: 41,620.34
Step by Step Solution
- Step 1: Write the proportion equation
87,717.70 : 131,557.65 = 27,750.88 : x - Step 2: Convert to fraction form
87,717.70/131,557.65 = 27,750.88/x - Step 3: Cross multiply
87,717.70x = 131,557.65 × 27,750.88 - Step 4: Simplify right side
87,717.70x = 3,650,840,558.23 - Step 5: Solve for x
x = 3,650,840,558.23/87,717.70 - Step 6: Final answer
x = 41,620.34
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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.