Home / 89,791.64-123,918.03-49,505.33

Finding the Fourth Proportional to 89,791.64, 123,918.03 and 49,505.33

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Solution

The fourth proportional to 89,791.64, 123,918.03 and 49,505.33 is: 68,320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,791.64 : 123,918.03 = 49,505.33 : x
  2. Step 2: Convert to fraction form
    89,791.64/123,918.03 = 49,505.33/x
  3. Step 3: Cross multiply
    89,791.64x = 123,918.03 × 49,505.33
  4. Step 4: Simplify right side
    89,791.64x = 6,134,602,968.10
  5. Step 5: Solve for x
    x = 6,134,602,968.10/89,791.64
  6. Step 6: Final answer
    x = 68,320.42

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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.