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Finding the Fourth Proportional to 63,960.80, 95,714.40 and 55,731.20

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Solution

The fourth proportional to 63,960.80, 95,714.40 and 55,731.20 is: 83,399.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,960.80 : 95,714.40 = 55,731.20 : x
  2. Step 2: Convert to fraction form
    63,960.80/95,714.40 = 55,731.20/x
  3. Step 3: Cross multiply
    63,960.80x = 95,714.40 × 55,731.20
  4. Step 4: Simplify right side
    63,960.80x = 5,334,278,369.28
  5. Step 5: Solve for x
    x = 5,334,278,369.28/63,960.80
  6. Step 6: Final answer
    x = 83,399.18

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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.