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Finding the Fourth Proportional to 36,287.19, 50,081.49 and 20,372.72

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Solution

The fourth proportional to 36,287.19, 50,081.49 and 20,372.72 is: 28,117.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,287.19 : 50,081.49 = 20,372.72 : x
  2. Step 2: Convert to fraction form
    36,287.19/50,081.49 = 20,372.72/x
  3. Step 3: Cross multiply
    36,287.19x = 50,081.49 × 20,372.72
  4. Step 4: Simplify right side
    36,287.19x = 1,020,295,922.55
  5. Step 5: Solve for x
    x = 1,020,295,922.55/36,287.19
  6. Step 6: Final answer
    x = 28,117.25

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