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Finding the Fourth Proportional to 63,638.40, 95,490 and 26,227.20

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Solution

The fourth proportional to 63,638.40, 95,490 and 26,227.20 is: 39,354.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,638.40 : 95,490 = 26,227.20 : x
  2. Step 2: Convert to fraction form
    63,638.40/95,490 = 26,227.20/x
  3. Step 3: Cross multiply
    63,638.40x = 95,490 × 26,227.20
  4. Step 4: Simplify right side
    63,638.40x = 2,504,435,328
  5. Step 5: Solve for x
    x = 2,504,435,328/63,638.40
  6. Step 6: Final answer
    x = 39,354.15

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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.