Home / 68,845.43-103,270.68-18,929.43

Finding the Fourth Proportional to 68,845.43, 103,270.68 and 18,929.43

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Solution

The fourth proportional to 68,845.43, 103,270.68 and 18,929.43 is: 28,394.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,845.43 : 103,270.68 = 18,929.43 : x
  2. Step 2: Convert to fraction form
    68,845.43/103,270.68 = 18,929.43/x
  3. Step 3: Cross multiply
    68,845.43x = 103,270.68 × 18,929.43
  4. Step 4: Simplify right side
    68,845.43x = 1,954,855,108.11
  5. Step 5: Solve for x
    x = 1,954,855,108.11/68,845.43
  6. Step 6: Final answer
    x = 28,394.84

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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.