Home / 68,831.20-103,234.50-18,230.59

Finding the Fourth Proportional to 68,831.20, 103,234.50 and 18,230.59

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Solution

The fourth proportional to 68,831.20, 103,234.50 and 18,230.59 is: 27,342.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,831.20 : 103,234.50 = 18,230.59 : x
  2. Step 2: Convert to fraction form
    68,831.20/103,234.50 = 18,230.59/x
  3. Step 3: Cross multiply
    68,831.20x = 103,234.50 × 18,230.59
  4. Step 4: Simplify right side
    68,831.20x = 1,882,025,843.36
  5. Step 5: Solve for x
    x = 1,882,025,843.36/68,831.20
  6. Step 6: Final answer
    x = 27,342.63

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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.