Home / 81,229.35-121,800.83-34,429.35

Finding the Fourth Proportional to 81,229.35, 121,800.83 and 34,429.35

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Solution

The fourth proportional to 81,229.35, 121,800.83 and 34,429.35 is: 51,625.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,229.35 : 121,800.83 = 34,429.35 : x
  2. Step 2: Convert to fraction form
    81,229.35/121,800.83 = 34,429.35/x
  3. Step 3: Cross multiply
    81,229.35x = 121,800.83 × 34,429.35
  4. Step 4: Simplify right side
    81,229.35x = 4,193,523,234.21
  5. Step 5: Solve for x
    x = 4,193,523,234.21/81,229.35
  6. Step 6: Final answer
    x = 51,625.71

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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.