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Finding the Fourth Proportional to 79,129.89, 118,535.85 and 36,951.81

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Solution

The fourth proportional to 79,129.89, 118,535.85 and 36,951.81 is: 55,353.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,129.89 : 118,535.85 = 36,951.81 : x
  2. Step 2: Convert to fraction form
    79,129.89/118,535.85 = 36,951.81/x
  3. Step 3: Cross multiply
    79,129.89x = 118,535.85 × 36,951.81
  4. Step 4: Simplify right side
    79,129.89x = 4,380,114,207.39
  5. Step 5: Solve for x
    x = 4,380,114,207.39/79,129.89
  6. Step 6: Final answer
    x = 55,353.47

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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.