Home / 89,415.62-123,393.17-49,129.26

Finding the Fourth Proportional to 89,415.62, 123,393.17 and 49,129.26

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Solution

The fourth proportional to 89,415.62, 123,393.17 and 49,129.26 is: 67,798.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,415.62 : 123,393.17 = 49,129.26 : x
  2. Step 2: Convert to fraction form
    89,415.62/123,393.17 = 49,129.26/x
  3. Step 3: Cross multiply
    89,415.62x = 123,393.17 × 49,129.26
  4. Step 4: Simplify right side
    89,415.62x = 6,062,214,791.25
  5. Step 5: Solve for x
    x = 6,062,214,791.25/89,415.62
  6. Step 6: Final answer
    x = 67,798.16

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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.