Home / 68,826.73-103,238.88-18,906.63

Finding the Fourth Proportional to 68,826.73, 103,238.88 and 18,906.63

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Solution

The fourth proportional to 68,826.73, 103,238.88 and 18,906.63 is: 28,359.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,826.73 : 103,238.88 = 18,906.63 : x
  2. Step 2: Convert to fraction form
    68,826.73/103,238.88 = 18,906.63/x
  3. Step 3: Cross multiply
    68,826.73x = 103,238.88 × 18,906.63
  4. Step 4: Simplify right side
    68,826.73x = 1,951,899,305.77
  5. Step 5: Solve for x
    x = 1,951,899,305.77/68,826.73
  6. Step 6: Final answer
    x = 28,359.61

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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.