Home / 89,644.65-123,708.60-49,357.59

Finding the Fourth Proportional to 89,644.65, 123,708.60 and 49,357.59

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Solution

The fourth proportional to 89,644.65, 123,708.60 and 49,357.59 is: 68,112.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,644.65 : 123,708.60 = 49,357.59 : x
  2. Step 2: Convert to fraction form
    89,644.65/123,708.60 = 49,357.59/x
  3. Step 3: Cross multiply
    89,644.65x = 123,708.60 × 49,357.59
  4. Step 4: Simplify right side
    89,644.65x = 6,105,958,358.27
  5. Step 5: Solve for x
    x = 6,105,958,358.27/89,644.65
  6. Step 6: Final answer
    x = 68,112.91

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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.