Home / 50,122.50-75,125.43-20,504.45

Finding the Fourth Proportional to 50,122.50, 75,125.43 and 20,504.45

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Solution

The fourth proportional to 50,122.50, 75,125.43 and 20,504.45 is: 30,732.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,122.50 : 75,125.43 = 20,504.45 : x
  2. Step 2: Convert to fraction form
    50,122.50/75,125.43 = 20,504.45/x
  3. Step 3: Cross multiply
    50,122.50x = 75,125.43 × 20,504.45
  4. Step 4: Simplify right side
    50,122.50x = 1,540,405,247.54
  5. Step 5: Solve for x
    x = 1,540,405,247.54/50,122.50
  6. Step 6: Final answer
    x = 30,732.81

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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.