Home / 87,481.98-131,218.79-40,069.71

Finding the Fourth Proportional to 87,481.98, 131,218.79 and 40,069.71

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Solution

The fourth proportional to 87,481.98, 131,218.79 and 40,069.71 is: 60,102.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,481.98 : 131,218.79 = 40,069.71 : x
  2. Step 2: Convert to fraction form
    87,481.98/131,218.79 = 40,069.71/x
  3. Step 3: Cross multiply
    87,481.98x = 131,218.79 × 40,069.71
  4. Step 4: Simplify right side
    87,481.98x = 5,257,898,661.50
  5. Step 5: Solve for x
    x = 5,257,898,661.50/87,481.98
  6. Step 6: Final answer
    x = 60,102.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.