Home / 36,744.20-55,043.40-20,079.80

Finding the Fourth Proportional to 36,744.20, 55,043.40 and 20,079.80

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Solution

The fourth proportional to 36,744.20, 55,043.40 and 20,079.80 is: 30,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,744.20 : 55,043.40 = 20,079.80 : x
  2. Step 2: Convert to fraction form
    36,744.20/55,043.40 = 20,079.80/x
  3. Step 3: Cross multiply
    36,744.20x = 55,043.40 × 20,079.80
  4. Step 4: Simplify right side
    36,744.20x = 1,105,260,463.32
  5. Step 5: Solve for x
    x = 1,105,260,463.32/36,744.20
  6. Step 6: Final answer
    x = 30,079.86

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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.