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Finding the Fourth Proportional to 67,266.15, 100,912.53 and 19,882.10

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Solution

The fourth proportional to 67,266.15, 100,912.53 and 19,882.10 is: 29,827.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,266.15 : 100,912.53 = 19,882.10 : x
  2. Step 2: Convert to fraction form
    67,266.15/100,912.53 = 19,882.10/x
  3. Step 3: Cross multiply
    67,266.15x = 100,912.53 × 19,882.10
  4. Step 4: Simplify right side
    67,266.15x = 2,006,352,508.15
  5. Step 5: Solve for x
    x = 2,006,352,508.15/67,266.15
  6. Step 6: Final answer
    x = 29,827.08

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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.