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Finding the Fourth Proportional to 63,540, 95,316.48 and 21,986.88

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Solution

The fourth proportional to 63,540, 95,316.48 and 21,986.88 is: 32,982.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,540 : 95,316.48 = 21,986.88 : x
  2. Step 2: Convert to fraction form
    63,540/95,316.48 = 21,986.88/x
  3. Step 3: Cross multiply
    63,540x = 95,316.48 × 21,986.88
  4. Step 4: Simplify right side
    63,540x = 2,095,712,007.78
  5. Step 5: Solve for x
    x = 2,095,712,007.78/63,540
  6. Step 6: Final answer
    x = 32,982.56

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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.