Home / 87,717.39-131,554.15-34,420.20

Finding the Fourth Proportional to 87,717.39, 131,554.15 and 34,420.20

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Solution

The fourth proportional to 87,717.39, 131,554.15 and 34,420.20 is: 51,621.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,717.39 : 131,554.15 = 34,420.20 : x
  2. Step 2: Convert to fraction form
    87,717.39/131,554.15 = 34,420.20/x
  3. Step 3: Cross multiply
    87,717.39x = 131,554.15 × 34,420.20
  4. Step 4: Simplify right side
    87,717.39x = 4,528,120,067.78
  5. Step 5: Solve for x
    x = 4,528,120,067.78/87,717.39
  6. Step 6: Final answer
    x = 51,621.69

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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.