Home / 57,745.11-86,620.74-18,305.31

Finding the Fourth Proportional to 57,745.11, 86,620.74 and 18,305.31

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Solution

The fourth proportional to 57,745.11, 86,620.74 and 18,305.31 is: 27,458.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,745.11 : 86,620.74 = 18,305.31 : x
  2. Step 2: Convert to fraction form
    57,745.11/86,620.74 = 18,305.31/x
  3. Step 3: Cross multiply
    57,745.11x = 86,620.74 × 18,305.31
  4. Step 4: Simplify right side
    57,745.11x = 1,585,619,406.60
  5. Step 5: Solve for x
    x = 1,585,619,406.60/57,745.11
  6. Step 6: Final answer
    x = 27,458.94

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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.