Home / 54,261.20-81,321.72-43,736.08

Finding the Fourth Proportional to 54,261.20, 81,321.72 and 43,736.08

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Solution

The fourth proportional to 54,261.20, 81,321.72 and 43,736.08 is: 65,547.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,261.20 : 81,321.72 = 43,736.08 : x
  2. Step 2: Convert to fraction form
    54,261.20/81,321.72 = 43,736.08/x
  3. Step 3: Cross multiply
    54,261.20x = 81,321.72 × 43,736.08
  4. Step 4: Simplify right side
    54,261.20x = 3,556,693,251.66
  5. Step 5: Solve for x
    x = 3,556,693,251.66/54,261.20
  6. Step 6: Final answer
    x = 65,547.63

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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.