Home / 49,772.20-74,600.70-20,175.40

Finding the Fourth Proportional to 49,772.20, 74,600.70 and 20,175.40

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Solution

The fourth proportional to 49,772.20, 74,600.70 and 20,175.40 is: 30,239.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,772.20 : 74,600.70 = 20,175.40 : x
  2. Step 2: Convert to fraction form
    49,772.20/74,600.70 = 20,175.40/x
  3. Step 3: Cross multiply
    49,772.20x = 74,600.70 × 20,175.40
  4. Step 4: Simplify right side
    49,772.20x = 1,505,098,962.78
  5. Step 5: Solve for x
    x = 1,505,098,962.78/49,772.20
  6. Step 6: Final answer
    x = 30,239.75

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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.