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Finding the Fourth Proportional to 67,228.39, 100,832.81 and 19,841.17

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Solution

The fourth proportional to 67,228.39, 100,832.81 and 19,841.17 is: 29,758.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,228.39 : 100,832.81 = 19,841.17 : x
  2. Step 2: Convert to fraction form
    67,228.39/100,832.81 = 19,841.17/x
  3. Step 3: Cross multiply
    67,228.39x = 100,832.81 × 19,841.17
  4. Step 4: Simplify right side
    67,228.39x = 2,000,640,924.79
  5. Step 5: Solve for x
    x = 2,000,640,924.79/67,228.39
  6. Step 6: Final answer
    x = 29,758.87

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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.