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Finding the Fourth Proportional to 69,622.56, 96,074.78 and 39,414.02

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Solution

The fourth proportional to 69,622.56, 96,074.78 and 39,414.02 is: 54,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,622.56 : 96,074.78 = 39,414.02 : x
  2. Step 2: Convert to fraction form
    69,622.56/96,074.78 = 39,414.02/x
  3. Step 3: Cross multiply
    69,622.56x = 96,074.78 × 39,414.02
  4. Step 4: Simplify right side
    69,622.56x = 3,786,692,622.97
  5. Step 5: Solve for x
    x = 3,786,692,622.97/69,622.56
  6. Step 6: Final answer
    x = 54,388.87

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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.