Home / 54,473.94-81,721.20-18,933.90

Finding the Fourth Proportional to 54,473.94, 81,721.20 and 18,933.90

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Solution

The fourth proportional to 54,473.94, 81,721.20 and 18,933.90 is: 28,404.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,473.94 : 81,721.20 = 18,933.90 : x
  2. Step 2: Convert to fraction form
    54,473.94/81,721.20 = 18,933.90/x
  3. Step 3: Cross multiply
    54,473.94x = 81,721.20 × 18,933.90
  4. Step 4: Simplify right side
    54,473.94x = 1,547,301,028.68
  5. Step 5: Solve for x
    x = 1,547,301,028.68/54,473.94
  6. Step 6: Final answer
    x = 28,404.43

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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.