Home / 57,173.75-78,939.16-43,721.57

Finding the Fourth Proportional to 57,173.75, 78,939.16 and 43,721.57

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Solution

The fourth proportional to 57,173.75, 78,939.16 and 43,721.57 is: 60,365.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,173.75 : 78,939.16 = 43,721.57 : x
  2. Step 2: Convert to fraction form
    57,173.75/78,939.16 = 43,721.57/x
  3. Step 3: Cross multiply
    57,173.75x = 78,939.16 × 43,721.57
  4. Step 4: Simplify right side
    57,173.75x = 3,451,344,097.73
  5. Step 5: Solve for x
    x = 3,451,344,097.73/57,173.75
  6. Step 6: Final answer
    x = 60,365.89

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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.