Home / 54,128.52-81,185.07-18,589.25

Finding the Fourth Proportional to 54,128.52, 81,185.07 and 18,589.25

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Solution

The fourth proportional to 54,128.52, 81,185.07 and 18,589.25 is: 27,881.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128.52 : 81,185.07 = 18,589.25 : x
  2. Step 2: Convert to fraction form
    54,128.52/81,185.07 = 18,589.25/x
  3. Step 3: Cross multiply
    54,128.52x = 81,185.07 × 18,589.25
  4. Step 4: Simplify right side
    54,128.52x = 1,509,169,748.48
  5. Step 5: Solve for x
    x = 1,509,169,748.48/54,128.52
  6. Step 6: Final answer
    x = 27,881.23

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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.