Home / 54,247.79-81,371.96-19,187.48

Finding the Fourth Proportional to 54,247.79, 81,371.96 and 19,187.48

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Solution

The fourth proportional to 54,247.79, 81,371.96 and 19,187.48 is: 28,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,247.79 : 81,371.96 = 19,187.48 : x
  2. Step 2: Convert to fraction form
    54,247.79/81,371.96 = 19,187.48/x
  3. Step 3: Cross multiply
    54,247.79x = 81,371.96 × 19,187.48
  4. Step 4: Simplify right side
    54,247.79x = 1,561,322,855.06
  5. Step 5: Solve for x
    x = 1,561,322,855.06/54,247.79
  6. Step 6: Final answer
    x = 28,781.32

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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.