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Finding the Fourth Proportional to 63,988.70, 88,306.28 and 35,693.78

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Solution

The fourth proportional to 63,988.70, 88,306.28 and 35,693.78 is: 49,258.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,988.70 : 88,306.28 = 35,693.78 : x
  2. Step 2: Convert to fraction form
    63,988.70/88,306.28 = 35,693.78/x
  3. Step 3: Cross multiply
    63,988.70x = 88,306.28 × 35,693.78
  4. Step 4: Simplify right side
    63,988.70x = 3,151,984,930.94
  5. Step 5: Solve for x
    x = 3,151,984,930.94/63,988.70
  6. Step 6: Final answer
    x = 49,258.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.