Home / 54,619.92-81,949.50-19,086.39

Finding the Fourth Proportional to 54,619.92, 81,949.50 and 19,086.39

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Solution

The fourth proportional to 54,619.92, 81,949.50 and 19,086.39 is: 28,636.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,619.92 : 81,949.50 = 19,086.39 : x
  2. Step 2: Convert to fraction form
    54,619.92/81,949.50 = 19,086.39/x
  3. Step 3: Cross multiply
    54,619.92x = 81,949.50 × 19,086.39
  4. Step 4: Simplify right side
    54,619.92x = 1,564,120,117.31
  5. Step 5: Solve for x
    x = 1,564,120,117.31/54,619.92
  6. Step 6: Final answer
    x = 28,636.44

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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.