Finding the Fourth Proportional to 87,733.11, 121,072.06 and 47,446.87
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Solution
The fourth proportional to 87,733.11, 121,072.06 and 47,446.87 is: 65,476.88
Step by Step Solution
- Step 1: Write the proportion equation
87,733.11 : 121,072.06 = 47,446.87 : x - Step 2: Convert to fraction form
87,733.11/121,072.06 = 47,446.87/x - Step 3: Cross multiply
87,733.11x = 121,072.06 × 47,446.87 - Step 4: Simplify right side
87,733.11x = 5,744,490,291.45 - Step 5: Solve for x
x = 5,744,490,291.45/87,733.11 - Step 6: Final answer
x = 65,476.88
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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.