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Finding the Fourth Proportional to 72,101.79, 108,067.01 and 29,972.88

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Solution

The fourth proportional to 72,101.79, 108,067.01 and 29,972.88 is: 44,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,101.79 : 108,067.01 = 29,972.88 : x
  2. Step 2: Convert to fraction form
    72,101.79/108,067.01 = 29,972.88/x
  3. Step 3: Cross multiply
    72,101.79x = 108,067.01 × 29,972.88
  4. Step 4: Simplify right side
    72,101.79x = 3,239,079,372.82
  5. Step 5: Solve for x
    x = 3,239,079,372.82/72,101.79
  6. Step 6: Final answer
    x = 44,923.70

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1.5x scale

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.