Home / 49,729.20-74,593.80-20,131.80

Finding the Fourth Proportional to 49,729.20, 74,593.80 and 20,131.80

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Solution

The fourth proportional to 49,729.20, 74,593.80 and 20,131.80 is: 30,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,729.20 : 74,593.80 = 20,131.80 : x
  2. Step 2: Convert to fraction form
    49,729.20/74,593.80 = 20,131.80/x
  3. Step 3: Cross multiply
    49,729.20x = 74,593.80 × 20,131.80
  4. Step 4: Simplify right side
    49,729.20x = 1,501,707,462.84
  5. Step 5: Solve for x
    x = 1,501,707,462.84/49,729.20
  6. Step 6: Final answer
    x = 30,197.70

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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.