Home / 87,819.32-131,758.56-27,857.72

Finding the Fourth Proportional to 87,819.32, 131,758.56 and 27,857.72

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Solution

The fourth proportional to 87,819.32, 131,758.56 and 27,857.72 is: 41,795.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,819.32 : 131,758.56 = 27,857.72 : x
  2. Step 2: Convert to fraction form
    87,819.32/131,758.56 = 27,857.72/x
  3. Step 3: Cross multiply
    87,819.32x = 131,758.56 × 27,857.72
  4. Step 4: Simplify right side
    87,819.32x = 3,670,493,072.08
  5. Step 5: Solve for x
    x = 3,670,493,072.08/87,819.32
  6. Step 6: Final answer
    x = 41,795.96

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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.