Home / 51,660.54-77,491.44-20,072.36

Finding the Fourth Proportional to 51,660.54, 77,491.44 and 20,072.36

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Solution

The fourth proportional to 51,660.54, 77,491.44 and 20,072.36 is: 30,108.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,660.54 : 77,491.44 = 20,072.36 : x
  2. Step 2: Convert to fraction form
    51,660.54/77,491.44 = 20,072.36/x
  3. Step 3: Cross multiply
    51,660.54x = 77,491.44 × 20,072.36
  4. Step 4: Simplify right side
    51,660.54x = 1,555,435,693.14
  5. Step 5: Solve for x
    x = 1,555,435,693.14/51,660.54
  6. Step 6: Final answer
    x = 30,108.78

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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.