Home / 87,924.60-131,984.10-54,682.20

Finding the Fourth Proportional to 87,924.60, 131,984.10 and 54,682.20

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Solution

The fourth proportional to 87,924.60, 131,984.10 and 54,682.20 is: 82,083.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,924.60 : 131,984.10 = 54,682.20 : x
  2. Step 2: Convert to fraction form
    87,924.60/131,984.10 = 54,682.20/x
  3. Step 3: Cross multiply
    87,924.60x = 131,984.10 × 54,682.20
  4. Step 4: Simplify right side
    87,924.60x = 7,217,180,953.02
  5. Step 5: Solve for x
    x = 7,217,180,953.02/87,924.60
  6. Step 6: Final answer
    x = 82,083.75

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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.