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Finding the Fourth Proportional to 67,997.75, 102,000.27 and 21,254.27

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Solution

The fourth proportional to 67,997.75, 102,000.27 and 21,254.27 is: 31,882.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,997.75 : 102,000.27 = 21,254.27 : x
  2. Step 2: Convert to fraction form
    67,997.75/102,000.27 = 21,254.27/x
  3. Step 3: Cross multiply
    67,997.75x = 102,000.27 × 21,254.27
  4. Step 4: Simplify right side
    67,997.75x = 2,167,941,278.65
  5. Step 5: Solve for x
    x = 2,167,941,278.65/67,997.75
  6. Step 6: Final answer
    x = 31,882.54

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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.