Home / 54,489.24-81,731.64-18,958.69

Finding the Fourth Proportional to 54,489.24, 81,731.64 and 18,958.69

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Solution

The fourth proportional to 54,489.24, 81,731.64 and 18,958.69 is: 28,437.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,489.24 : 81,731.64 = 18,958.69 : x
  2. Step 2: Convert to fraction form
    54,489.24/81,731.64 = 18,958.69/x
  3. Step 3: Cross multiply
    54,489.24x = 81,731.64 × 18,958.69
  4. Step 4: Simplify right side
    54,489.24x = 1,549,524,825.95
  5. Step 5: Solve for x
    x = 1,549,524,825.95/54,489.24
  6. Step 6: Final answer
    x = 28,437.26

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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.