Home / 36,742.20-55,040.40-20,077.80

Finding the Fourth Proportional to 36,742.20, 55,040.40 and 20,077.80

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Solution

The fourth proportional to 36,742.20, 55,040.40 and 20,077.80 is: 30,076.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,742.20 : 55,040.40 = 20,077.80 : x
  2. Step 2: Convert to fraction form
    36,742.20/55,040.40 = 20,077.80/x
  3. Step 3: Cross multiply
    36,742.20x = 55,040.40 × 20,077.80
  4. Step 4: Simplify right side
    36,742.20x = 1,105,090,143.12
  5. Step 5: Solve for x
    x = 1,105,090,143.12/36,742.20
  6. Step 6: Final answer
    x = 30,076.86

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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.