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Finding the Fourth Proportional to 50,379.36, 75,603 and 20,796.54

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Solution

The fourth proportional to 50,379.36, 75,603 and 20,796.54 is: 31,208.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,379.36 : 75,603 = 20,796.54 : x
  2. Step 2: Convert to fraction form
    50,379.36/75,603 = 20,796.54/x
  3. Step 3: Cross multiply
    50,379.36x = 75,603 × 20,796.54
  4. Step 4: Simplify right side
    50,379.36x = 1,572,280,813.62
  5. Step 5: Solve for x
    x = 1,572,280,813.62/50,379.36
  6. Step 6: Final answer
    x = 31,208.83

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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.