Home / 68,738.97-103,108.51-18,819.48

Finding the Fourth Proportional to 68,738.97, 103,108.51 and 18,819.48

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Solution

The fourth proportional to 68,738.97, 103,108.51 and 18,819.48 is: 28,229.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,738.97 : 103,108.51 = 18,819.48 : x
  2. Step 2: Convert to fraction form
    68,738.97/103,108.51 = 18,819.48/x
  3. Step 3: Cross multiply
    68,738.97x = 103,108.51 × 18,819.48
  4. Step 4: Simplify right side
    68,738.97x = 1,940,448,951.96
  5. Step 5: Solve for x
    x = 1,940,448,951.96/68,738.97
  6. Step 6: Final answer
    x = 28,229.24

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1.5x scale

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.