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Finding the Fourth Proportional to 79,684.89, 119,367.03 and 36,930.39

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Solution

The fourth proportional to 79,684.89, 119,367.03 and 36,930.39 is: 55,321.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,684.89 : 119,367.03 = 36,930.39 : x
  2. Step 2: Convert to fraction form
    79,684.89/119,367.03 = 36,930.39/x
  3. Step 3: Cross multiply
    79,684.89x = 119,367.03 × 36,930.39
  4. Step 4: Simplify right side
    79,684.89x = 4,408,270,971.04
  5. Step 5: Solve for x
    x = 4,408,270,971.04/79,684.89
  6. Step 6: Final answer
    x = 55,321.29

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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.