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Finding the Fourth Proportional to 79,083.49, 109,135.10 and 43,273.49

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Solution

The fourth proportional to 79,083.49, 109,135.10 and 43,273.49 is: 59,717.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,083.49 : 109,135.10 = 43,273.49 : x
  2. Step 2: Convert to fraction form
    79,083.49/109,135.10 = 43,273.49/x
  3. Step 3: Cross multiply
    79,083.49x = 109,135.10 × 43,273.49
  4. Step 4: Simplify right side
    79,083.49x = 4,722,656,591.48
  5. Step 5: Solve for x
    x = 4,722,656,591.48/79,083.49
  6. Step 6: Final answer
    x = 59,717.35

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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.