Home / 83,129.73-114,761.81-49,148.61

Finding the Fourth Proportional to 83,129.73, 114,761.81 and 49,148.61

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Solution

The fourth proportional to 83,129.73, 114,761.81 and 49,148.61 is: 67,850.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,129.73 : 114,761.81 = 49,148.61 : x
  2. Step 2: Convert to fraction form
    83,129.73/114,761.81 = 49,148.61/x
  3. Step 3: Cross multiply
    83,129.73x = 114,761.81 × 49,148.61
  4. Step 4: Simplify right side
    83,129.73x = 5,640,383,196.84
  5. Step 5: Solve for x
    x = 5,640,383,196.84/83,129.73
  6. Step 6: Final answer
    x = 67,850.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.