Home / 63,489.90-95,242.72-20,780.66

Finding the Fourth Proportional to 63,489.90, 95,242.72 and 20,780.66

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Solution

The fourth proportional to 63,489.90, 95,242.72 and 20,780.66 is: 31,173.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,489.90 : 95,242.72 = 20,780.66 : x
  2. Step 2: Convert to fraction form
    63,489.90/95,242.72 = 20,780.66/x
  3. Step 3: Cross multiply
    63,489.90x = 95,242.72 × 20,780.66
  4. Step 4: Simplify right side
    63,489.90x = 1,979,206,488.72
  5. Step 5: Solve for x
    x = 1,979,206,488.72/63,489.90
  6. Step 6: Final answer
    x = 31,173.56

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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.