Home / 54,371.80-81,538.12-18,823.46

Finding the Fourth Proportional to 54,371.80, 81,538.12 and 18,823.46

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Solution

The fourth proportional to 54,371.80, 81,538.12 and 18,823.46 is: 28,228.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,371.80 : 81,538.12 = 18,823.46 : x
  2. Step 2: Convert to fraction form
    54,371.80/81,538.12 = 18,823.46/x
  3. Step 3: Cross multiply
    54,371.80x = 81,538.12 × 18,823.46
  4. Step 4: Simplify right side
    54,371.80x = 1,534,829,540.30
  5. Step 5: Solve for x
    x = 1,534,829,540.30/54,371.80
  6. Step 6: Final answer
    x = 28,228.41

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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.