Home / 81,984.57-122,699.07-50,414.61

Finding the Fourth Proportional to 81,984.57, 122,699.07 and 50,414.61

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Solution

The fourth proportional to 81,984.57, 122,699.07 and 50,414.61 is: 75,451.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,984.57 : 122,699.07 = 50,414.61 : x
  2. Step 2: Convert to fraction form
    81,984.57/122,699.07 = 50,414.61/x
  3. Step 3: Cross multiply
    81,984.57x = 122,699.07 × 50,414.61
  4. Step 4: Simplify right side
    81,984.57x = 6,185,826,158.52
  5. Step 5: Solve for x
    x = 6,185,826,158.52/81,984.57
  6. Step 6: Final answer
    x = 75,451.11

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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.