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Finding the Fourth Proportional to 69,438.78, 95,825.07 and 39,233.88

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Solution

The fourth proportional to 69,438.78, 95,825.07 and 39,233.88 is: 54,142.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,438.78 : 95,825.07 = 39,233.88 : x
  2. Step 2: Convert to fraction form
    69,438.78/95,825.07 = 39,233.88/x
  3. Step 3: Cross multiply
    69,438.78x = 95,825.07 × 39,233.88
  4. Step 4: Simplify right side
    69,438.78x = 3,759,589,297.37
  5. Step 5: Solve for x
    x = 3,759,589,297.37/69,438.78
  6. Step 6: Final answer
    x = 54,142.50

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1.5x scale

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.