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Finding the Fourth Proportional to 77,062.27, 115,593.40 and 21,658.27

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Solution

The fourth proportional to 77,062.27, 115,593.40 and 21,658.27 is: 32,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,062.27 : 115,593.40 = 21,658.27 : x
  2. Step 2: Convert to fraction form
    77,062.27/115,593.40 = 21,658.27/x
  3. Step 3: Cross multiply
    77,062.27x = 115,593.40 × 21,658.27
  4. Step 4: Simplify right side
    77,062.27x = 2,503,553,067.42
  5. Step 5: Solve for x
    x = 2,503,553,067.42/77,062.27
  6. Step 6: Final answer
    x = 32,487.40

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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.