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Finding the Fourth Proportional to 63,449.78, 95,156.16 and 21,325.10

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Solution

The fourth proportional to 63,449.78, 95,156.16 and 21,325.10 is: 31,981.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,449.78 : 95,156.16 = 21,325.10 : x
  2. Step 2: Convert to fraction form
    63,449.78/95,156.16 = 21,325.10/x
  3. Step 3: Cross multiply
    63,449.78x = 95,156.16 × 21,325.10
  4. Step 4: Simplify right side
    63,449.78x = 2,029,214,627.62
  5. Step 5: Solve for x
    x = 2,029,214,627.62/63,449.78
  6. Step 6: Final answer
    x = 31,981.43

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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.