Home / 54,254.94-81,394.86-20,975.28

Finding the Fourth Proportional to 54,254.94, 81,394.86 and 20,975.28

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Solution

The fourth proportional to 54,254.94, 81,394.86 and 20,975.28 is: 31,467.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,254.94 : 81,394.86 = 20,975.28 : x
  2. Step 2: Convert to fraction form
    54,254.94/81,394.86 = 20,975.28/x
  3. Step 3: Cross multiply
    54,254.94x = 81,394.86 × 20,975.28
  4. Step 4: Simplify right side
    54,254.94x = 1,707,279,979.06
  5. Step 5: Solve for x
    x = 1,707,279,979.06/54,254.94
  6. Step 6: Final answer
    x = 31,467.73

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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.