Home / 63,039.66-87,120.14-51,691.56

Finding the Fourth Proportional to 63,039.66, 87,120.14 and 51,691.56

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Solution

The fourth proportional to 63,039.66, 87,120.14 and 51,691.56 is: 71,437.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,039.66 : 87,120.14 = 51,691.56 : x
  2. Step 2: Convert to fraction form
    63,039.66/87,120.14 = 51,691.56/x
  3. Step 3: Cross multiply
    63,039.66x = 87,120.14 × 51,691.56
  4. Step 4: Simplify right side
    63,039.66x = 4,503,375,685.56
  5. Step 5: Solve for x
    x = 4,503,375,685.56/63,039.66
  6. Step 6: Final answer
    x = 71,437.18

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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.