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Finding the Fourth Proportional to 80,503.03, 120,716.04 and 29,867.29

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Solution

The fourth proportional to 80,503.03, 120,716.04 and 29,867.29 is: 44,786.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,503.03 : 120,716.04 = 29,867.29 : x
  2. Step 2: Convert to fraction form
    80,503.03/120,716.04 = 29,867.29/x
  3. Step 3: Cross multiply
    80,503.03x = 120,716.04 × 29,867.29
  4. Step 4: Simplify right side
    80,503.03x = 3,605,460,974.33
  5. Step 5: Solve for x
    x = 3,605,460,974.33/80,503.03
  6. Step 6: Final answer
    x = 44,786.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.