Finding the Fourth Proportional to 87,998.92, 121,437.77 and 49,765.97
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Solution
The fourth proportional to 87,998.92, 121,437.77 and 49,765.97 is: 68,676.62
Step by Step Solution
- Step 1: Write the proportion equation
87,998.92 : 121,437.77 = 49,765.97 : x - Step 2: Convert to fraction form
87,998.92/121,437.77 = 49,765.97/x - Step 3: Cross multiply
87,998.92x = 121,437.77 × 49,765.97 - Step 4: Simplify right side
87,998.92x = 6,043,468,543.10 - Step 5: Solve for x
x = 6,043,468,543.10/87,998.92 - Step 6: Final answer
x = 68,676.62
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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.