Home / 55,344.20-83,016.30-13,791.20

Finding the Fourth Proportional to 55,344.20, 83,016.30 and 13,791.20

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Solution

The fourth proportional to 55,344.20, 83,016.30 and 13,791.20 is: 20,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,344.20 : 83,016.30 = 13,791.20 : x
  2. Step 2: Convert to fraction form
    55,344.20/83,016.30 = 13,791.20/x
  3. Step 3: Cross multiply
    55,344.20x = 83,016.30 × 13,791.20
  4. Step 4: Simplify right side
    55,344.20x = 1,144,894,396.56
  5. Step 5: Solve for x
    x = 1,144,894,396.56/55,344.20
  6. Step 6: Final answer
    x = 20,686.80

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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.