Home / 87,490.04-131,255.97-28,325.78

Finding the Fourth Proportional to 87,490.04, 131,255.97 and 28,325.78

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Solution

The fourth proportional to 87,490.04, 131,255.97 and 28,325.78 is: 42,495.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,490.04 : 131,255.97 = 28,325.78 : x
  2. Step 2: Convert to fraction form
    87,490.04/131,255.97 = 28,325.78/x
  3. Step 3: Cross multiply
    87,490.04x = 131,255.97 × 28,325.78
  4. Step 4: Simplify right side
    87,490.04x = 3,717,926,932.00
  5. Step 5: Solve for x
    x = 3,717,926,932.00/87,490.04
  6. Step 6: Final answer
    x = 42,495.43

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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.