Home / 87,961.56-131,960.84-28,792.64

Finding the Fourth Proportional to 87,961.56, 131,960.84 and 28,792.64

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Solution

The fourth proportional to 87,961.56, 131,960.84 and 28,792.64 is: 43,195.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,961.56 : 131,960.84 = 28,792.64 : x
  2. Step 2: Convert to fraction form
    87,961.56/131,960.84 = 28,792.64/x
  3. Step 3: Cross multiply
    87,961.56x = 131,960.84 × 28,792.64
  4. Step 4: Simplify right side
    87,961.56x = 3,799,500,960.22
  5. Step 5: Solve for x
    x = 3,799,500,960.22/87,961.56
  6. Step 6: Final answer
    x = 43,195.02

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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.