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Finding the Fourth Proportional to 67,566.21, 101,363.67 and 20,180.79

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Solution

The fourth proportional to 67,566.21, 101,363.67 and 20,180.79 is: 30,275.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,566.21 : 101,363.67 = 20,180.79 : x
  2. Step 2: Convert to fraction form
    67,566.21/101,363.67 = 20,180.79/x
  3. Step 3: Cross multiply
    67,566.21x = 101,363.67 × 20,180.79
  4. Step 4: Simplify right side
    67,566.21x = 2,045,598,937.90
  5. Step 5: Solve for x
    x = 2,045,598,937.90/67,566.21
  6. Step 6: Final answer
    x = 30,275.47

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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.