Home / 87,734-131,614.68-28,555.70

Finding the Fourth Proportional to 87,734, 131,614.68 and 28,555.70

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Solution

The fourth proportional to 87,734, 131,614.68 and 28,555.70 is: 42,838.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,734 : 131,614.68 = 28,555.70 : x
  2. Step 2: Convert to fraction form
    87,734/131,614.68 = 28,555.70/x
  3. Step 3: Cross multiply
    87,734x = 131,614.68 × 28,555.70
  4. Step 4: Simplify right side
    87,734x = 3,758,349,317.68
  5. Step 5: Solve for x
    x = 3,758,349,317.68/87,734
  6. Step 6: Final answer
    x = 42,838.00

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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.