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Finding the Fourth Proportional to 72,067.52, 108,167.74 and 36,553.78

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Solution

The fourth proportional to 72,067.52, 108,167.74 and 36,553.78 is: 54,864.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,067.52 : 108,167.74 = 36,553.78 : x
  2. Step 2: Convert to fraction form
    72,067.52/108,167.74 = 36,553.78/x
  3. Step 3: Cross multiply
    72,067.52x = 108,167.74 × 36,553.78
  4. Step 4: Simplify right side
    72,067.52x = 3,953,939,771.06
  5. Step 5: Solve for x
    x = 3,953,939,771.06/72,067.52
  6. Step 6: Final answer
    x = 54,864.38

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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.