Home / 89,791.86-123,912.60-49,505.34

Finding the Fourth Proportional to 89,791.86, 123,912.60 and 49,505.34

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Solution

The fourth proportional to 89,791.86, 123,912.60 and 49,505.34 is: 68,317.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,791.86 : 123,912.60 = 49,505.34 : x
  2. Step 2: Convert to fraction form
    89,791.86/123,912.60 = 49,505.34/x
  3. Step 3: Cross multiply
    89,791.86x = 123,912.60 × 49,505.34
  4. Step 4: Simplify right side
    89,791.86x = 6,134,335,393.28
  5. Step 5: Solve for x
    x = 6,134,335,393.28/89,791.86
  6. Step 6: Final answer
    x = 68,317.28

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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.