Home / 80,544.44-120,792-38,402.30

Finding the Fourth Proportional to 80,544.44, 120,792 and 38,402.30

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Solution

The fourth proportional to 80,544.44, 120,792 and 38,402.30 is: 57,591.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,544.44 : 120,792 = 38,402.30 : x
  2. Step 2: Convert to fraction form
    80,544.44/120,792 = 38,402.30/x
  3. Step 3: Cross multiply
    80,544.44x = 120,792 × 38,402.30
  4. Step 4: Simplify right side
    80,544.44x = 4,638,690,621.60
  5. Step 5: Solve for x
    x = 4,638,690,621.60/80,544.44
  6. Step 6: Final answer
    x = 57,591.69

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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.