Home / 87,505.56-120,758.04-49,265.76

Finding the Fourth Proportional to 87,505.56, 120,758.04 and 49,265.76

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Solution

The fourth proportional to 87,505.56, 120,758.04 and 49,265.76 is: 67,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,505.56 : 120,758.04 = 49,265.76 : x
  2. Step 2: Convert to fraction form
    87,505.56/120,758.04 = 49,265.76/x
  3. Step 3: Cross multiply
    87,505.56x = 120,758.04 × 49,265.76
  4. Step 4: Simplify right side
    87,505.56x = 5,949,236,616.71
  5. Step 5: Solve for x
    x = 5,949,236,616.71/87,505.56
  6. Step 6: Final answer
    x = 67,986.96

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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.