Home / 87,191.83-120,320.60-48,432.16

Finding the Fourth Proportional to 87,191.83, 120,320.60 and 48,432.16

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Solution

The fourth proportional to 87,191.83, 120,320.60 and 48,432.16 is: 66,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,191.83 : 120,320.60 = 48,432.16 : x
  2. Step 2: Convert to fraction form
    87,191.83/120,320.60 = 48,432.16/x
  3. Step 3: Cross multiply
    87,191.83x = 120,320.60 × 48,432.16
  4. Step 4: Simplify right side
    87,191.83x = 5,827,385,948.89
  5. Step 5: Solve for x
    x = 5,827,385,948.89/87,191.83
  6. Step 6: Final answer
    x = 66,834.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.