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Finding the Fourth Proportional to 63,279.88, 87,301.11 and 36,407.92

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Solution

The fourth proportional to 63,279.88, 87,301.11 and 36,407.92 is: 50,228.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,279.88 : 87,301.11 = 36,407.92 : x
  2. Step 2: Convert to fraction form
    63,279.88/87,301.11 = 36,407.92/x
  3. Step 3: Cross multiply
    63,279.88x = 87,301.11 × 36,407.92
  4. Step 4: Simplify right side
    63,279.88x = 3,178,451,828.79
  5. Step 5: Solve for x
    x = 3,178,451,828.79/63,279.88
  6. Step 6: Final answer
    x = 50,228.48

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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.