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Finding the Fourth Proportional to 36,839.80, 55,194.90 and 30,230.20

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Solution

The fourth proportional to 36,839.80, 55,194.90 and 30,230.20 is: 45,292.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,839.80 : 55,194.90 = 30,230.20 : x
  2. Step 2: Convert to fraction form
    36,839.80/55,194.90 = 30,230.20/x
  3. Step 3: Cross multiply
    36,839.80x = 55,194.90 × 30,230.20
  4. Step 4: Simplify right side
    36,839.80x = 1,668,552,865.98
  5. Step 5: Solve for x
    x = 1,668,552,865.98/36,839.80
  6. Step 6: Final answer
    x = 45,292.13

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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.