Home / 48,190.24-72,246.38-20,131.78

Finding the Fourth Proportional to 48,190.24, 72,246.38 and 20,131.78

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Solution

The fourth proportional to 48,190.24, 72,246.38 and 20,131.78 is: 30,181.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,190.24 : 72,246.38 = 20,131.78 : x
  2. Step 2: Convert to fraction form
    48,190.24/72,246.38 = 20,131.78/x
  3. Step 3: Cross multiply
    48,190.24x = 72,246.38 × 20,131.78
  4. Step 4: Simplify right side
    48,190.24x = 1,454,448,227.96
  5. Step 5: Solve for x
    x = 1,454,448,227.96/48,190.24
  6. Step 6: Final answer
    x = 30,181.39

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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.