Home / 54,489.74-81,732.39-18,959.19

Finding the Fourth Proportional to 54,489.74, 81,732.39 and 18,959.19

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Solution

The fourth proportional to 54,489.74, 81,732.39 and 18,959.19 is: 28,438.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,489.74 : 81,732.39 = 18,959.19 : x
  2. Step 2: Convert to fraction form
    54,489.74/81,732.39 = 18,959.19/x
  3. Step 3: Cross multiply
    54,489.74x = 81,732.39 × 18,959.19
  4. Step 4: Simplify right side
    54,489.74x = 1,549,579,911.16
  5. Step 5: Solve for x
    x = 1,549,579,911.16/54,489.74
  6. Step 6: Final answer
    x = 28,438.01

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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.