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Finding the Fourth Proportional to 63,331, 87,405.06 and 36,474.64

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Solution

The fourth proportional to 63,331, 87,405.06 and 36,474.64 is: 50,339.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,331 : 87,405.06 = 36,474.64 : x
  2. Step 2: Convert to fraction form
    63,331/87,405.06 = 36,474.64/x
  3. Step 3: Cross multiply
    63,331x = 87,405.06 × 36,474.64
  4. Step 4: Simplify right side
    63,331x = 3,188,068,097.68
  5. Step 5: Solve for x
    x = 3,188,068,097.68/63,331
  6. Step 6: Final answer
    x = 50,339.77

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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.