Home / 50,143.44-75,215.70-20,540.64

Finding the Fourth Proportional to 50,143.44, 75,215.70 and 20,540.64

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Solution

The fourth proportional to 50,143.44, 75,215.70 and 20,540.64 is: 30,811.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,143.44 : 75,215.70 = 20,540.64 : x
  2. Step 2: Convert to fraction form
    50,143.44/75,215.70 = 20,540.64/x
  3. Step 3: Cross multiply
    50,143.44x = 75,215.70 × 20,540.64
  4. Step 4: Simplify right side
    50,143.44x = 1,544,978,616.05
  5. Step 5: Solve for x
    x = 1,544,978,616.05/50,143.44
  6. Step 6: Final answer
    x = 30,811.18

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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.