Home / 81,306.76-121,956.48-33,902.32

Finding the Fourth Proportional to 81,306.76, 121,956.48 and 33,902.32

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Solution

The fourth proportional to 81,306.76, 121,956.48 and 33,902.32 is: 50,851.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,306.76 : 121,956.48 = 33,902.32 : x
  2. Step 2: Convert to fraction form
    81,306.76/121,956.48 = 33,902.32/x
  3. Step 3: Cross multiply
    81,306.76x = 121,956.48 × 33,902.32
  4. Step 4: Simplify right side
    81,306.76x = 4,134,607,611.03
  5. Step 5: Solve for x
    x = 4,134,607,611.03/81,306.76
  6. Step 6: Final answer
    x = 50,851.95

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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.