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Finding the Fourth Proportional to 67,219.71, 100,806.05 and 19,822.23

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Solution

The fourth proportional to 67,219.71, 100,806.05 and 19,822.23 is: 29,726.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,219.71 : 100,806.05 = 19,822.23 : x
  2. Step 2: Convert to fraction form
    67,219.71/100,806.05 = 19,822.23/x
  3. Step 3: Cross multiply
    67,219.71x = 100,806.05 × 19,822.23
  4. Step 4: Simplify right side
    67,219.71x = 1,998,200,609.38
  5. Step 5: Solve for x
    x = 1,998,200,609.38/67,219.71
  6. Step 6: Final answer
    x = 29,726.41

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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.