Home / 80,863.54-121,318.70-33,469.86

Finding the Fourth Proportional to 80,863.54, 121,318.70 and 33,469.86

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Solution

The fourth proportional to 80,863.54, 121,318.70 and 33,469.86 is: 50,214.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,863.54 : 121,318.70 = 33,469.86 : x
  2. Step 2: Convert to fraction form
    80,863.54/121,318.70 = 33,469.86/x
  3. Step 3: Cross multiply
    80,863.54x = 121,318.70 × 33,469.86
  4. Step 4: Simplify right side
    80,863.54x = 4,060,519,904.38
  5. Step 5: Solve for x
    x = 4,060,519,904.38/80,863.54
  6. Step 6: Final answer
    x = 50,214.47

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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.