Home / 49,768.88-74,652.80-20,179.68

Finding the Fourth Proportional to 49,768.88, 74,652.80 and 20,179.68

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Solution

The fourth proportional to 49,768.88, 74,652.80 and 20,179.68 is: 30,269.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,768.88 : 74,652.80 = 20,179.68 : x
  2. Step 2: Convert to fraction form
    49,768.88/74,652.80 = 20,179.68/x
  3. Step 3: Cross multiply
    49,768.88x = 74,652.80 × 20,179.68
  4. Step 4: Simplify right side
    49,768.88x = 1,506,469,615.10
  5. Step 5: Solve for x
    x = 1,506,469,615.10/49,768.88
  6. Step 6: Final answer
    x = 30,269.31

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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.