Home / 87,788.12-131,685.92-34,491.63

Finding the Fourth Proportional to 87,788.12, 131,685.92 and 34,491.63

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Solution

The fourth proportional to 87,788.12, 131,685.92 and 34,491.63 is: 51,738.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,788.12 : 131,685.92 = 34,491.63 : x
  2. Step 2: Convert to fraction form
    87,788.12/131,685.92 = 34,491.63/x
  3. Step 3: Cross multiply
    87,788.12x = 131,685.92 × 34,491.63
  4. Step 4: Simplify right side
    87,788.12x = 4,542,062,115.08
  5. Step 5: Solve for x
    x = 4,542,062,115.08/87,788.12
  6. Step 6: Final answer
    x = 51,738.92

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1.5x scale

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.