Home / 49,991.28-74,986.97-20,019.05

Finding the Fourth Proportional to 49,991.28, 74,986.97 and 20,019.05

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Solution

The fourth proportional to 49,991.28, 74,986.97 and 20,019.05 is: 30,028.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,991.28 : 74,986.97 = 20,019.05 : x
  2. Step 2: Convert to fraction form
    49,991.28/74,986.97 = 20,019.05/x
  3. Step 3: Cross multiply
    49,991.28x = 74,986.97 × 20,019.05
  4. Step 4: Simplify right side
    49,991.28x = 1,501,167,707.95
  5. Step 5: Solve for x
    x = 1,501,167,707.95/49,991.28
  6. Step 6: Final answer
    x = 30,028.59

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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.