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Finding the Fourth Proportional to 69,119.20, 103,678.80 and 24,747.40

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Solution

The fourth proportional to 69,119.20, 103,678.80 and 24,747.40 is: 37,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,119.20 : 103,678.80 = 24,747.40 : x
  2. Step 2: Convert to fraction form
    69,119.20/103,678.80 = 24,747.40/x
  3. Step 3: Cross multiply
    69,119.20x = 103,678.80 × 24,747.40
  4. Step 4: Simplify right side
    69,119.20x = 2,565,780,735.12
  5. Step 5: Solve for x
    x = 2,565,780,735.12/69,119.20
  6. Step 6: Final answer
    x = 37,121.10

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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.