Finding the Fourth Proportional to 99,793.76, 137,711.94 and 59,486.75
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Solution
The fourth proportional to 99,793.76, 137,711.94 and 59,486.75 is: 82,089.66
Step by Step Solution
- Step 1: Write the proportion equation
99,793.76 : 137,711.94 = 59,486.75 : x - Step 2: Convert to fraction form
99,793.76/137,711.94 = 59,486.75/x - Step 3: Cross multiply
99,793.76x = 137,711.94 × 59,486.75 - Step 4: Simplify right side
99,793.76x = 8,192,035,746.80 - Step 5: Solve for x
x = 8,192,035,746.80/99,793.76 - Step 6: Final answer
x = 82,089.66
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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.