Home / 67,126.32-100,694.34-20,382.84

Finding the Fourth Proportional to 67,126.32, 100,694.34 and 20,382.84

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Solution

The fourth proportional to 67,126.32, 100,694.34 and 20,382.84 is: 30,575.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,126.32 : 100,694.34 = 20,382.84 : x
  2. Step 2: Convert to fraction form
    67,126.32/100,694.34 = 20,382.84/x
  3. Step 3: Cross multiply
    67,126.32x = 100,694.34 × 20,382.84
  4. Step 4: Simplify right side
    67,126.32x = 2,052,436,621.13
  5. Step 5: Solve for x
    x = 2,052,436,621.13/67,126.32
  6. Step 6: Final answer
    x = 30,575.74

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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.