Finding the Fourth Proportional to 87,634.53, 120,793.97 and 68,481.02
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Solution
The fourth proportional to 87,634.53, 120,793.97 and 68,481.02 is: 94,393.09
Step by Step Solution
- Step 1: Write the proportion equation
87,634.53 : 120,793.97 = 68,481.02 : x - Step 2: Convert to fraction form
87,634.53/120,793.97 = 68,481.02/x - Step 3: Cross multiply
87,634.53x = 120,793.97 × 68,481.02 - Step 4: Simplify right side
87,634.53x = 8,272,094,144.67 - Step 5: Solve for x
x = 8,272,094,144.67/87,634.53 - Step 6: Final answer
x = 94,393.09
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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.