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Finding the Fourth Proportional to 50,379, 75,571.62 and 15,321.24

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Solution

The fourth proportional to 50,379, 75,571.62 and 15,321.24 is: 22,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,379 : 75,571.62 = 15,321.24 : x
  2. Step 2: Convert to fraction form
    50,379/75,571.62 = 15,321.24/x
  3. Step 3: Cross multiply
    50,379x = 75,571.62 × 15,321.24
  4. Step 4: Simplify right side
    50,379x = 1,157,850,927.21
  5. Step 5: Solve for x
    x = 1,157,850,927.21/50,379
  6. Step 6: Final answer
    x = 22,982.81

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1.5x scale

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.