Home / 54,216.83-81,305.03-18,668.21

Finding the Fourth Proportional to 54,216.83, 81,305.03 and 18,668.21

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Solution

The fourth proportional to 54,216.83, 81,305.03 and 18,668.21 is: 27,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,216.83 : 81,305.03 = 18,668.21 : x
  2. Step 2: Convert to fraction form
    54,216.83/81,305.03 = 18,668.21/x
  3. Step 3: Cross multiply
    54,216.83x = 81,305.03 × 18,668.21
  4. Step 4: Simplify right side
    54,216.83x = 1,517,819,014.24
  5. Step 5: Solve for x
    x = 1,517,819,014.24/54,216.83
  6. Step 6: Final answer
    x = 27,995.35

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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.