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Finding the Fourth Proportional to 67,227.39, 100,831.31 and 19,840.17

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Solution

The fourth proportional to 67,227.39, 100,831.31 and 19,840.17 is: 29,757.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,227.39 : 100,831.31 = 19,840.17 : x
  2. Step 2: Convert to fraction form
    67,227.39/100,831.31 = 19,840.17/x
  3. Step 3: Cross multiply
    67,227.39x = 100,831.31 × 19,840.17
  4. Step 4: Simplify right side
    67,227.39x = 2,000,510,331.72
  5. Step 5: Solve for x
    x = 2,000,510,331.72/67,227.39
  6. Step 6: Final answer
    x = 29,757.37

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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.