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Finding the Fourth Proportional to 66,881.12, 100,362.44 and 26,892.61

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Solution

The fourth proportional to 66,881.12, 100,362.44 and 26,892.61 is: 40,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,881.12 : 100,362.44 = 26,892.61 : x
  2. Step 2: Convert to fraction form
    66,881.12/100,362.44 = 26,892.61/x
  3. Step 3: Cross multiply
    66,881.12x = 100,362.44 × 26,892.61
  4. Step 4: Simplify right side
    66,881.12x = 2,699,007,957.57
  5. Step 5: Solve for x
    x = 2,699,007,957.57/66,881.12
  6. Step 6: Final answer
    x = 40,355.30

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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.