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Finding the Fourth Proportional to 50,655.39, 75,986.33 and 19,490.64

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Solution

The fourth proportional to 50,655.39, 75,986.33 and 19,490.64 is: 29,237.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,655.39 : 75,986.33 = 19,490.64 : x
  2. Step 2: Convert to fraction form
    50,655.39/75,986.33 = 19,490.64/x
  3. Step 3: Cross multiply
    50,655.39x = 75,986.33 × 19,490.64
  4. Step 4: Simplify right side
    50,655.39x = 1,481,022,105.50
  5. Step 5: Solve for x
    x = 1,481,022,105.50/50,655.39
  6. Step 6: Final answer
    x = 29,237.21

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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.