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Finding the Fourth Proportional to 69,287.38, 103,853.31 and 34,251.64

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Solution

The fourth proportional to 69,287.38, 103,853.31 and 34,251.64 is: 51,339.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,287.38 : 103,853.31 = 34,251.64 : x
  2. Step 2: Convert to fraction form
    69,287.38/103,853.31 = 34,251.64/x
  3. Step 3: Cross multiply
    69,287.38x = 103,853.31 × 34,251.64
  4. Step 4: Simplify right side
    69,287.38x = 3,557,146,186.93
  5. Step 5: Solve for x
    x = 3,557,146,186.93/69,287.38
  6. Step 6: Final answer
    x = 51,339.02

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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.