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Finding the Fourth Proportional to 55,344.39, 76,375 and 30,193.89

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Solution

The fourth proportional to 55,344.39, 76,375 and 30,193.89 is: 41,667.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,344.39 : 76,375 = 30,193.89 : x
  2. Step 2: Convert to fraction form
    55,344.39/76,375 = 30,193.89/x
  3. Step 3: Cross multiply
    55,344.39x = 76,375 × 30,193.89
  4. Step 4: Simplify right side
    55,344.39x = 2,306,058,348.75
  5. Step 5: Solve for x
    x = 2,306,058,348.75/55,344.39
  6. Step 6: Final answer
    x = 41,667.43

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1.5x scale

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.