Home / 54,207.60-81,313.68-19,147.44

Finding the Fourth Proportional to 54,207.60, 81,313.68 and 19,147.44

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Solution

The fourth proportional to 54,207.60, 81,313.68 and 19,147.44 is: 28,721.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,207.60 : 81,313.68 = 19,147.44 : x
  2. Step 2: Convert to fraction form
    54,207.60/81,313.68 = 19,147.44/x
  3. Step 3: Cross multiply
    54,207.60x = 81,313.68 × 19,147.44
  4. Step 4: Simplify right side
    54,207.60x = 1,556,948,808.98
  5. Step 5: Solve for x
    x = 1,556,948,808.98/54,207.60
  6. Step 6: Final answer
    x = 28,721.97

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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.