Home / 54,919.37-82,388.78-20,724.41

Finding the Fourth Proportional to 54,919.37, 82,388.78 and 20,724.41

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Solution

The fourth proportional to 54,919.37, 82,388.78 and 20,724.41 is: 31,090.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,919.37 : 82,388.78 = 20,724.41 : x
  2. Step 2: Convert to fraction form
    54,919.37/82,388.78 = 20,724.41/x
  3. Step 3: Cross multiply
    54,919.37x = 82,388.78 × 20,724.41
  4. Step 4: Simplify right side
    54,919.37x = 1,707,458,340.55
  5. Step 5: Solve for x
    x = 1,707,458,340.55/54,919.37
  6. Step 6: Final answer
    x = 31,090.28

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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.