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Finding the Fourth Proportional to 89,035, 122,876.94 and 49,291

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Solution

The fourth proportional to 89,035, 122,876.94 and 49,291 is: 68,026.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,035 : 122,876.94 = 49,291 : x
  2. Step 2: Convert to fraction form
    89,035/122,876.94 = 49,291/x
  3. Step 3: Cross multiply
    89,035x = 122,876.94 × 49,291
  4. Step 4: Simplify right side
    89,035x = 6,056,727,249.54
  5. Step 5: Solve for x
    x = 6,056,727,249.54/89,035
  6. Step 6: Final answer
    x = 68,026.36

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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.