Home / 89,744.44-123,821.56-57,931.44

Finding the Fourth Proportional to 89,744.44, 123,821.56 and 57,931.44

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Solution

The fourth proportional to 89,744.44, 123,821.56 and 57,931.44 is: 79,928.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,744.44 : 123,821.56 = 57,931.44 : x
  2. Step 2: Convert to fraction form
    89,744.44/123,821.56 = 57,931.44/x
  3. Step 3: Cross multiply
    89,744.44x = 123,821.56 × 57,931.44
  4. Step 4: Simplify right side
    89,744.44x = 7,173,161,273.85
  5. Step 5: Solve for x
    x = 7,173,161,273.85/89,744.44
  6. Step 6: Final answer
    x = 79,928.75

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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.