Home / 54,659.52-81,987.84-15,219.36

Finding the Fourth Proportional to 54,659.52, 81,987.84 and 15,219.36

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Solution

The fourth proportional to 54,659.52, 81,987.84 and 15,219.36 is: 22,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,659.52 : 81,987.84 = 15,219.36 : x
  2. Step 2: Convert to fraction form
    54,659.52/81,987.84 = 15,219.36/x
  3. Step 3: Cross multiply
    54,659.52x = 81,987.84 × 15,219.36
  4. Step 4: Simplify right side
    54,659.52x = 1,247,802,452.58
  5. Step 5: Solve for x
    x = 1,247,802,452.58/54,659.52
  6. Step 6: Final answer
    x = 22,828.64

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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.