Home / 68,849.52-103,275.42-18,929.28

Finding the Fourth Proportional to 68,849.52, 103,275.42 and 18,929.28

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Solution

The fourth proportional to 68,849.52, 103,275.42 and 18,929.28 is: 28,394.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,849.52 : 103,275.42 = 18,929.28 : x
  2. Step 2: Convert to fraction form
    68,849.52/103,275.42 = 18,929.28/x
  3. Step 3: Cross multiply
    68,849.52x = 103,275.42 × 18,929.28
  4. Step 4: Simplify right side
    68,849.52x = 1,954,929,342.30
  5. Step 5: Solve for x
    x = 1,954,929,342.30/68,849.52
  6. Step 6: Final answer
    x = 28,394.23

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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.