Home / 87,450.24-131,272.48-45,319.04

Finding the Fourth Proportional to 87,450.24, 131,272.48 and 45,319.04

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Solution

The fourth proportional to 87,450.24, 131,272.48 and 45,319.04 is: 68,028.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,450.24 : 131,272.48 = 45,319.04 : x
  2. Step 2: Convert to fraction form
    87,450.24/131,272.48 = 45,319.04/x
  3. Step 3: Cross multiply
    87,450.24x = 131,272.48 × 45,319.04
  4. Step 4: Simplify right side
    87,450.24x = 5,949,142,772.02
  5. Step 5: Solve for x
    x = 5,949,142,772.02/87,450.24
  6. Step 6: Final answer
    x = 68,028.89

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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.