Home / 68,768.09-103,141.07-18,836.52

Finding the Fourth Proportional to 68,768.09, 103,141.07 and 18,836.52

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Solution

The fourth proportional to 68,768.09, 103,141.07 and 18,836.52 is: 28,251.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,768.09 : 103,141.07 = 18,836.52 : x
  2. Step 2: Convert to fraction form
    68,768.09/103,141.07 = 18,836.52/x
  3. Step 3: Cross multiply
    68,768.09x = 103,141.07 × 18,836.52
  4. Step 4: Simplify right side
    68,768.09x = 1,942,818,470.53
  5. Step 5: Solve for x
    x = 1,942,818,470.53/68,768.09
  6. Step 6: Final answer
    x = 28,251.74

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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.