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Finding the Fourth Proportional to 69,687.42, 96,147.45 and 39,467.94

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Solution

The fourth proportional to 69,687.42, 96,147.45 and 39,467.94 is: 54,453.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,687.42 : 96,147.45 = 39,467.94 : x
  2. Step 2: Convert to fraction form
    69,687.42/96,147.45 = 39,467.94/x
  3. Step 3: Cross multiply
    69,687.42x = 96,147.45 × 39,467.94
  4. Step 4: Simplify right side
    69,687.42x = 3,794,741,787.75
  5. Step 5: Solve for x
    x = 3,794,741,787.75/69,687.42
  6. Step 6: Final answer
    x = 54,453.76

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Why These Related Problems?

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