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Finding the Fourth Proportional to 69,944.76, 96,520.74 and 39,729.97

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Solution

The fourth proportional to 69,944.76, 96,520.74 and 39,729.97 is: 54,825.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,944.76 : 96,520.74 = 39,729.97 : x
  2. Step 2: Convert to fraction form
    69,944.76/96,520.74 = 39,729.97/x
  3. Step 3: Cross multiply
    69,944.76x = 96,520.74 × 39,729.97
  4. Step 4: Simplify right side
    69,944.76x = 3,834,766,104.58
  5. Step 5: Solve for x
    x = 3,834,766,104.58/69,944.76
  6. Step 6: Final answer
    x = 54,825.64

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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.