Home / 87,869.90-131,861.55-48,455.30

Finding the Fourth Proportional to 87,869.90, 131,861.55 and 48,455.30

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Solution

The fourth proportional to 87,869.90, 131,861.55 and 48,455.30 is: 72,714.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,869.90 : 131,861.55 = 48,455.30 : x
  2. Step 2: Convert to fraction form
    87,869.90/131,861.55 = 48,455.30/x
  3. Step 3: Cross multiply
    87,869.90x = 131,861.55 × 48,455.30
  4. Step 4: Simplify right side
    87,869.90x = 6,389,390,963.72
  5. Step 5: Solve for x
    x = 6,389,390,963.72/87,869.90
  6. Step 6: Final answer
    x = 72,714.22

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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.