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Finding the Fourth Proportional to 65,304.56, 90,120.33 and 38,463.73

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Solution

The fourth proportional to 65,304.56, 90,120.33 and 38,463.73 is: 53,079.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,304.56 : 90,120.33 = 38,463.73 : x
  2. Step 2: Convert to fraction form
    65,304.56/90,120.33 = 38,463.73/x
  3. Step 3: Cross multiply
    65,304.56x = 90,120.33 × 38,463.73
  4. Step 4: Simplify right side
    65,304.56x = 3,466,363,815.33
  5. Step 5: Solve for x
    x = 3,466,363,815.33/65,304.56
  6. Step 6: Final answer
    x = 53,079.96

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