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Finding the Fourth Proportional to 63,938.40, 95,792.40 and 54,031.20

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Solution

The fourth proportional to 63,938.40, 95,792.40 and 54,031.20 is: 80,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,938.40 : 95,792.40 = 54,031.20 : x
  2. Step 2: Convert to fraction form
    63,938.40/95,792.40 = 54,031.20/x
  3. Step 3: Cross multiply
    63,938.40x = 95,792.40 × 54,031.20
  4. Step 4: Simplify right side
    63,938.40x = 5,175,778,322.88
  5. Step 5: Solve for x
    x = 5,175,778,322.88/63,938.40
  6. Step 6: Final answer
    x = 80,949.45

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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.