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Finding the Fourth Proportional to 71,391.65, 107,102.52 and 27,017.42

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Solution

The fourth proportional to 71,391.65, 107,102.52 and 27,017.42 is: 40,531.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,391.65 : 107,102.52 = 27,017.42 : x
  2. Step 2: Convert to fraction form
    71,391.65/107,102.52 = 27,017.42/x
  3. Step 3: Cross multiply
    71,391.65x = 107,102.52 × 27,017.42
  4. Step 4: Simplify right side
    71,391.65x = 2,893,633,230.39
  5. Step 5: Solve for x
    x = 2,893,633,230.39/71,391.65
  6. Step 6: Final answer
    x = 40,531.82

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1.5x scale

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.