Home / 81,981.39-122,694.33-50,411.44

Finding the Fourth Proportional to 81,981.39, 122,694.33 and 50,411.44

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Solution

The fourth proportional to 81,981.39, 122,694.33 and 50,411.44 is: 75,446.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,981.39 : 122,694.33 = 50,411.44 : x
  2. Step 2: Convert to fraction form
    81,981.39/122,694.33 = 50,411.44/x
  3. Step 3: Cross multiply
    81,981.39x = 122,694.33 × 50,411.44
  4. Step 4: Simplify right side
    81,981.39x = 6,185,197,944.74
  5. Step 5: Solve for x
    x = 6,185,197,944.74/81,981.39
  6. Step 6: Final answer
    x = 75,446.37

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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.