Home / 50,102.28-75,129.12-18,939.96

Finding the Fourth Proportional to 50,102.28, 75,129.12 and 18,939.96

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Solution

The fourth proportional to 50,102.28, 75,129.12 and 18,939.96 is: 28,400.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,102.28 : 75,129.12 = 18,939.96 : x
  2. Step 2: Convert to fraction form
    50,102.28/75,129.12 = 18,939.96/x
  3. Step 3: Cross multiply
    50,102.28x = 75,129.12 × 18,939.96
  4. Step 4: Simplify right side
    50,102.28x = 1,422,942,527.64
  5. Step 5: Solve for x
    x = 1,422,942,527.64/50,102.28
  6. Step 6: Final answer
    x = 28,400.75

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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.