Home / 81,710.44-112,766.56-49,885.49

Finding the Fourth Proportional to 81,710.44, 112,766.56 and 49,885.49

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Solution

The fourth proportional to 81,710.44, 112,766.56 and 49,885.49 is: 68,845.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,710.44 : 112,766.56 = 49,885.49 : x
  2. Step 2: Convert to fraction form
    81,710.44/112,766.56 = 49,885.49/x
  3. Step 3: Cross multiply
    81,710.44x = 112,766.56 × 49,885.49
  4. Step 4: Simplify right side
    81,710.44x = 5,625,414,904.71
  5. Step 5: Solve for x
    x = 5,625,414,904.71/81,710.44
  6. Step 6: Final answer
    x = 68,845.73

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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.