Home / 89,680.44-123,759-49,393.86

Finding the Fourth Proportional to 89,680.44, 123,759 and 49,393.86

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Solution

The fourth proportional to 89,680.44, 123,759 and 49,393.86 is: 68,163.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,680.44 : 123,759 = 49,393.86 : x
  2. Step 2: Convert to fraction form
    89,680.44/123,759 = 49,393.86/x
  3. Step 3: Cross multiply
    89,680.44x = 123,759 × 49,393.86
  4. Step 4: Simplify right side
    89,680.44x = 6,112,934,719.74
  5. Step 5: Solve for x
    x = 6,112,934,719.74/89,680.44
  6. Step 6: Final answer
    x = 68,163.52

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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.