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Finding the Fourth Proportional to 36,361.35, 50,178.69 and 20,445.80

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Solution

The fourth proportional to 36,361.35, 50,178.69 and 20,445.80 is: 28,215.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,361.35 : 50,178.69 = 20,445.80 : x
  2. Step 2: Convert to fraction form
    36,361.35/50,178.69 = 20,445.80/x
  3. Step 3: Cross multiply
    36,361.35x = 50,178.69 × 20,445.80
  4. Step 4: Simplify right side
    36,361.35x = 1,025,943,209.11
  5. Step 5: Solve for x
    x = 1,025,943,209.11/36,361.35
  6. Step 6: Final answer
    x = 28,215.21

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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.