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Finding the Fourth Proportional to 86,883.38, 130,351.38 and 36,306.95

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Solution

The fourth proportional to 86,883.38, 130,351.38 and 36,306.95 is: 54,471.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,883.38 : 130,351.38 = 36,306.95 : x
  2. Step 2: Convert to fraction form
    86,883.38/130,351.38 = 36,306.95/x
  3. Step 3: Cross multiply
    86,883.38x = 130,351.38 × 36,306.95
  4. Step 4: Simplify right side
    86,883.38x = 4,732,661,241.30
  5. Step 5: Solve for x
    x = 4,732,661,241.30/86,883.38
  6. Step 6: Final answer
    x = 54,471.42

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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.