Home / 71,917.11-99,243.57-45,074.43

Finding the Fourth Proportional to 71,917.11, 99,243.57 and 45,074.43

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Solution

The fourth proportional to 71,917.11, 99,243.57 and 45,074.43 is: 62,201.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,917.11 : 99,243.57 = 45,074.43 : x
  2. Step 2: Convert to fraction form
    71,917.11/99,243.57 = 45,074.43/x
  3. Step 3: Cross multiply
    71,917.11x = 99,243.57 × 45,074.43
  4. Step 4: Simplify right side
    71,917.11x = 4,473,347,348.92
  5. Step 5: Solve for x
    x = 4,473,347,348.92/71,917.11
  6. Step 6: Final answer
    x = 62,201.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.