Home / 81,934.68-122,956.74-35,198.76

Finding the Fourth Proportional to 81,934.68, 122,956.74 and 35,198.76

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Solution

The fourth proportional to 81,934.68, 122,956.74 and 35,198.76 is: 52,821.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,934.68 : 122,956.74 = 35,198.76 : x
  2. Step 2: Convert to fraction form
    81,934.68/122,956.74 = 35,198.76/x
  3. Step 3: Cross multiply
    81,934.68x = 122,956.74 × 35,198.76
  4. Step 4: Simplify right side
    81,934.68x = 4,327,924,781.64
  5. Step 5: Solve for x
    x = 4,327,924,781.64/81,934.68
  6. Step 6: Final answer
    x = 52,821.65

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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.