Home / 63,171.28-87,174.12-34,876.90

Finding the Fourth Proportional to 63,171.28, 87,174.12 and 34,876.90

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Solution

The fourth proportional to 63,171.28, 87,174.12 and 34,876.90 is: 48,128.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,171.28 : 87,174.12 = 34,876.90 : x
  2. Step 2: Convert to fraction form
    63,171.28/87,174.12 = 34,876.90/x
  3. Step 3: Cross multiply
    63,171.28x = 87,174.12 × 34,876.90
  4. Step 4: Simplify right side
    63,171.28x = 3,040,363,065.83
  5. Step 5: Solve for x
    x = 3,040,363,065.83/63,171.28
  6. Step 6: Final answer
    x = 48,128.88

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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.