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Finding the Fourth Proportional to 69,640.75, 104,502.63 and 25,270.97

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Solution

The fourth proportional to 69,640.75, 104,502.63 and 25,270.97 is: 37,921.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,640.75 : 104,502.63 = 25,270.97 : x
  2. Step 2: Convert to fraction form
    69,640.75/104,502.63 = 25,270.97/x
  3. Step 3: Cross multiply
    69,640.75x = 104,502.63 × 25,270.97
  4. Step 4: Simplify right side
    69,640.75x = 2,640,882,399.90
  5. Step 5: Solve for x
    x = 2,640,882,399.90/69,640.75
  6. Step 6: Final answer
    x = 37,921.51

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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.