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Finding the Fourth Proportional to 80,351.35, 120,509.73 and 32,919.94

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Solution

The fourth proportional to 80,351.35, 120,509.73 and 32,919.94 is: 49,372.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,351.35 : 120,509.73 = 32,919.94 : x
  2. Step 2: Convert to fraction form
    80,351.35/120,509.73 = 32,919.94/x
  3. Step 3: Cross multiply
    80,351.35x = 120,509.73 × 32,919.94
  4. Step 4: Simplify right side
    80,351.35x = 3,967,173,081.02
  5. Step 5: Solve for x
    x = 3,967,173,081.02/80,351.35
  6. Step 6: Final answer
    x = 49,372.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.