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Finding the Fourth Proportional to 66,876, 100,360.08 and 23,100

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Solution

The fourth proportional to 66,876, 100,360.08 and 23,100 is: 34,665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,876 : 100,360.08 = 23,100 : x
  2. Step 2: Convert to fraction form
    66,876/100,360.08 = 23,100/x
  3. Step 3: Cross multiply
    66,876x = 100,360.08 × 23,100
  4. Step 4: Simplify right side
    66,876x = 2,318,317,848
  5. Step 5: Solve for x
    x = 2,318,317,848/66,876
  6. Step 6: Final answer
    x = 34,665.92

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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.