Home / 68,151.44-102,228.24-20,767.52

Finding the Fourth Proportional to 68,151.44, 102,228.24 and 20,767.52

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Solution

The fourth proportional to 68,151.44, 102,228.24 and 20,767.52 is: 31,151.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,151.44 : 102,228.24 = 20,767.52 : x
  2. Step 2: Convert to fraction form
    68,151.44/102,228.24 = 20,767.52/x
  3. Step 3: Cross multiply
    68,151.44x = 102,228.24 × 20,767.52
  4. Step 4: Simplify right side
    68,151.44x = 2,123,027,018.76
  5. Step 5: Solve for x
    x = 2,123,027,018.76/68,151.44
  6. Step 6: Final answer
    x = 31,151.61

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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.