Home / 40,754.82-61,120.38-15,789.30

Finding the Fourth Proportional to 40,754.82, 61,120.38 and 15,789.30

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Solution

The fourth proportional to 40,754.82, 61,120.38 and 15,789.30 is: 23,679.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,754.82 : 61,120.38 = 15,789.30 : x
  2. Step 2: Convert to fraction form
    40,754.82/61,120.38 = 15,789.30/x
  3. Step 3: Cross multiply
    40,754.82x = 61,120.38 × 15,789.30
  4. Step 4: Simplify right side
    40,754.82x = 965,048,015.93
  5. Step 5: Solve for x
    x = 965,048,015.93/40,754.82
  6. Step 6: Final answer
    x = 23,679.36

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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.