Home / 68,842.11-103,258.94-40,939.73

Finding the Fourth Proportional to 68,842.11, 103,258.94 and 40,939.73

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Solution

The fourth proportional to 68,842.11, 103,258.94 and 40,939.73 is: 61,407.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,842.11 : 103,258.94 = 40,939.73 : x
  2. Step 2: Convert to fraction form
    68,842.11/103,258.94 = 40,939.73/x
  3. Step 3: Cross multiply
    68,842.11x = 103,258.94 × 40,939.73
  4. Step 4: Simplify right side
    68,842.11x = 4,227,392,402.69
  5. Step 5: Solve for x
    x = 4,227,392,402.69/68,842.11
  6. Step 6: Final answer
    x = 61,407.07

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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.