Home / 45,244.80-67,839.86-20,280.20

Finding the Fourth Proportional to 45,244.80, 67,839.86 and 20,280.20

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Solution

The fourth proportional to 45,244.80, 67,839.86 and 20,280.20 is: 30,408.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,244.80 : 67,839.86 = 20,280.20 : x
  2. Step 2: Convert to fraction form
    45,244.80/67,839.86 = 20,280.20/x
  3. Step 3: Cross multiply
    45,244.80x = 67,839.86 × 20,280.20
  4. Step 4: Simplify right side
    45,244.80x = 1,375,805,640.27
  5. Step 5: Solve for x
    x = 1,375,805,640.27/45,244.80
  6. Step 6: Final answer
    x = 30,408.04

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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.