Home / 89,764.32-123,869.12-49,475.86

Finding the Fourth Proportional to 89,764.32, 123,869.12 and 49,475.86

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Solution

The fourth proportional to 89,764.32, 123,869.12 and 49,475.86 is: 68,273.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,764.32 : 123,869.12 = 49,475.86 : x
  2. Step 2: Convert to fraction form
    89,764.32/123,869.12 = 49,475.86/x
  3. Step 3: Cross multiply
    89,764.32x = 123,869.12 × 49,475.86
  4. Step 4: Simplify right side
    89,764.32x = 6,128,531,239.44
  5. Step 5: Solve for x
    x = 6,128,531,239.44/89,764.32
  6. Step 6: Final answer
    x = 68,273.58

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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.