Home / 51,370.72-77,078.34-18,114.54

Finding the Fourth Proportional to 51,370.72, 77,078.34 and 18,114.54

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Solution

The fourth proportional to 51,370.72, 77,078.34 and 18,114.54 is: 27,179.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,370.72 : 77,078.34 = 18,114.54 : x
  2. Step 2: Convert to fraction form
    51,370.72/77,078.34 = 18,114.54/x
  3. Step 3: Cross multiply
    51,370.72x = 77,078.34 × 18,114.54
  4. Step 4: Simplify right side
    51,370.72x = 1,396,238,673.06
  5. Step 5: Solve for x
    x = 1,396,238,673.06/51,370.72
  6. Step 6: Final answer
    x = 27,179.66

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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.