Finding the Fourth Proportional to 88,205.40, 121,717.14 and 49,953.96
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Solution
The fourth proportional to 88,205.40, 121,717.14 and 49,953.96 is: 68,932.89
Step by Step Solution
- Step 1: Write the proportion equation
88,205.40 : 121,717.14 = 49,953.96 : x - Step 2: Convert to fraction form
88,205.40/121,717.14 = 49,953.96/x - Step 3: Cross multiply
88,205.40x = 121,717.14 × 49,953.96 - Step 4: Simplify right side
88,205.40x = 6,080,253,142.87 - Step 5: Solve for x
x = 6,080,253,142.87/88,205.40 - Step 6: Final answer
x = 68,932.89
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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.