Home / 54,072.16-81,144.40-19,011.68

Finding the Fourth Proportional to 54,072.16, 81,144.40 and 19,011.68

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Solution

The fourth proportional to 54,072.16, 81,144.40 and 19,011.68 is: 28,530.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,072.16 : 81,144.40 = 19,011.68 : x
  2. Step 2: Convert to fraction form
    54,072.16/81,144.40 = 19,011.68/x
  3. Step 3: Cross multiply
    54,072.16x = 81,144.40 × 19,011.68
  4. Step 4: Simplify right side
    54,072.16x = 1,542,691,366.59
  5. Step 5: Solve for x
    x = 1,542,691,366.59/54,072.16
  6. Step 6: Final answer
    x = 28,530.23

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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.