Home / 87,600.78-131,373.72-28,424.16

Finding the Fourth Proportional to 87,600.78, 131,373.72 and 28,424.16

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Solution

The fourth proportional to 87,600.78, 131,373.72 and 28,424.16 is: 42,627.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,600.78 : 131,373.72 = 28,424.16 : x
  2. Step 2: Convert to fraction form
    87,600.78/131,373.72 = 28,424.16/x
  3. Step 3: Cross multiply
    87,600.78x = 131,373.72 × 28,424.16
  4. Step 4: Simplify right side
    87,600.78x = 3,734,187,637.08
  5. Step 5: Solve for x
    x = 3,734,187,637.08/87,600.78
  6. Step 6: Final answer
    x = 42,627.33

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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.