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Finding the Fourth Proportional to 67,874.76, 101,621.79 and 51,182.28

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Solution

The fourth proportional to 67,874.76, 101,621.79 and 51,182.28 is: 76,629.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,874.76 : 101,621.79 = 51,182.28 : x
  2. Step 2: Convert to fraction form
    67,874.76/101,621.79 = 51,182.28/x
  3. Step 3: Cross multiply
    67,874.76x = 101,621.79 × 51,182.28
  4. Step 4: Simplify right side
    67,874.76x = 5,201,234,909.88
  5. Step 5: Solve for x
    x = 5,201,234,909.88/67,874.76
  6. Step 6: Final answer
    x = 76,629.88

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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.