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Finding the Fourth Proportional to 50,699.88, 69,951.54 and 30,279.54

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Solution

The fourth proportional to 50,699.88, 69,951.54 and 30,279.54 is: 41,777.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,699.88 : 69,951.54 = 30,279.54 : x
  2. Step 2: Convert to fraction form
    50,699.88/69,951.54 = 30,279.54/x
  3. Step 3: Cross multiply
    50,699.88x = 69,951.54 × 30,279.54
  4. Step 4: Simplify right side
    50,699.88x = 2,118,100,453.49
  5. Step 5: Solve for x
    x = 2,118,100,453.49/50,699.88
  6. Step 6: Final answer
    x = 41,777.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.