Home / 87,824.57-131,757.82-28,660.35

Finding the Fourth Proportional to 87,824.57, 131,757.82 and 28,660.35

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Solution

The fourth proportional to 87,824.57, 131,757.82 and 28,660.35 is: 42,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,824.57 : 131,757.82 = 28,660.35 : x
  2. Step 2: Convert to fraction form
    87,824.57/131,757.82 = 28,660.35/x
  3. Step 3: Cross multiply
    87,824.57x = 131,757.82 × 28,660.35
  4. Step 4: Simplify right side
    87,824.57x = 3,776,225,093.14
  5. Step 5: Solve for x
    x = 3,776,225,093.14/87,824.57
  6. Step 6: Final answer
    x = 42,997.37

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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.