Home / 54,986.18-82,478.55-13,433.54

Finding the Fourth Proportional to 54,986.18, 82,478.55 and 13,433.54

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Solution

The fourth proportional to 54,986.18, 82,478.55 and 13,433.54 is: 20,150.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,986.18 : 82,478.55 = 13,433.54 : x
  2. Step 2: Convert to fraction form
    54,986.18/82,478.55 = 13,433.54/x
  3. Step 3: Cross multiply
    54,986.18x = 82,478.55 × 13,433.54
  4. Step 4: Simplify right side
    54,986.18x = 1,107,978,900.57
  5. Step 5: Solve for x
    x = 1,107,978,900.57/54,986.18
  6. Step 6: Final answer
    x = 20,150.13

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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.