Home / 54,217.52-81,309.68-19,148.96

Finding the Fourth Proportional to 54,217.52, 81,309.68 and 19,148.96

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Solution

The fourth proportional to 54,217.52, 81,309.68 and 19,148.96 is: 28,717.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,217.52 : 81,309.68 = 19,148.96 : x
  2. Step 2: Convert to fraction form
    54,217.52/81,309.68 = 19,148.96/x
  3. Step 3: Cross multiply
    54,217.52x = 81,309.68 × 19,148.96
  4. Step 4: Simplify right side
    54,217.52x = 1,556,995,809.93
  5. Step 5: Solve for x
    x = 1,556,995,809.93/54,217.52
  6. Step 6: Final answer
    x = 28,717.58

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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.