Home / 87,738.07-131,618.04-28,557.85

Finding the Fourth Proportional to 87,738.07, 131,618.04 and 28,557.85

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Solution

The fourth proportional to 87,738.07, 131,618.04 and 28,557.85 is: 42,840.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,738.07 : 131,618.04 = 28,557.85 : x
  2. Step 2: Convert to fraction form
    87,738.07/131,618.04 = 28,557.85/x
  3. Step 3: Cross multiply
    87,738.07x = 131,618.04 × 28,557.85
  4. Step 4: Simplify right side
    87,738.07x = 3,758,728,134.58
  5. Step 5: Solve for x
    x = 3,758,728,134.58/87,738.07
  6. Step 6: Final answer
    x = 42,840.33

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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.