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Finding the Fourth Proportional to 66,518.38, 99,777.56 and 44,375

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Solution

The fourth proportional to 66,518.38, 99,777.56 and 44,375 is: 66,562.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,518.38 : 99,777.56 = 44,375 : x
  2. Step 2: Convert to fraction form
    66,518.38/99,777.56 = 44,375/x
  3. Step 3: Cross multiply
    66,518.38x = 99,777.56 × 44,375
  4. Step 4: Simplify right side
    66,518.38x = 4,427,629,225
  5. Step 5: Solve for x
    x = 4,427,629,225/66,518.38
  6. Step 6: Final answer
    x = 66,562.49

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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.