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Finding the Fourth Proportional to 66,679, 100,023.78 and 22,305.96

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Solution

The fourth proportional to 66,679, 100,023.78 and 22,305.96 is: 33,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,679 : 100,023.78 = 22,305.96 : x
  2. Step 2: Convert to fraction form
    66,679/100,023.78 = 22,305.96/x
  3. Step 3: Cross multiply
    66,679x = 100,023.78 × 22,305.96
  4. Step 4: Simplify right side
    66,679x = 2,231,126,435.73
  5. Step 5: Solve for x
    x = 2,231,126,435.73/66,679
  6. Step 6: Final answer
    x = 33,460.71

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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.