Home / 87,199.20-120,333.60-49,472.64

Finding the Fourth Proportional to 87,199.20, 120,333.60 and 49,472.64

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Solution

The fourth proportional to 87,199.20, 120,333.60 and 49,472.64 is: 68,271.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,199.20 : 120,333.60 = 49,472.64 : x
  2. Step 2: Convert to fraction form
    87,199.20/120,333.60 = 49,472.64/x
  3. Step 3: Cross multiply
    87,199.20x = 120,333.60 × 49,472.64
  4. Step 4: Simplify right side
    87,199.20x = 5,953,220,872.70
  5. Step 5: Solve for x
    x = 5,953,220,872.70/87,199.20
  6. Step 6: Final answer
    x = 68,271.51

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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.