Home / 54,516.99-81,726.21-19,448.31

Finding the Fourth Proportional to 54,516.99, 81,726.21 and 19,448.31

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Solution

The fourth proportional to 54,516.99, 81,726.21 and 19,448.31 is: 29,154.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,516.99 : 81,726.21 = 19,448.31 : x
  2. Step 2: Convert to fraction form
    54,516.99/81,726.21 = 19,448.31/x
  3. Step 3: Cross multiply
    54,516.99x = 81,726.21 × 19,448.31
  4. Step 4: Simplify right side
    54,516.99x = 1,589,436,667.21
  5. Step 5: Solve for x
    x = 1,589,436,667.21/54,516.99
  6. Step 6: Final answer
    x = 29,154.89

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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.