Home / 87,958.13-131,625.75-54,693.86

Finding the Fourth Proportional to 87,958.13, 131,625.75 and 54,693.86

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Solution

The fourth proportional to 87,958.13, 131,625.75 and 54,693.86 is: 81,847.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,958.13 : 131,625.75 = 54,693.86 : x
  2. Step 2: Convert to fraction form
    87,958.13/131,625.75 = 54,693.86/x
  3. Step 3: Cross multiply
    87,958.13x = 131,625.75 × 54,693.86
  4. Step 4: Simplify right side
    87,958.13x = 7,199,120,342.90
  5. Step 5: Solve for x
    x = 7,199,120,342.90/87,958.13
  6. Step 6: Final answer
    x = 81,847.13

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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.