Home / 80,380.44-120,621.96-56,673.36

Finding the Fourth Proportional to 80,380.44, 120,621.96 and 56,673.36

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Solution

The fourth proportional to 80,380.44, 120,621.96 and 56,673.36 is: 85,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,380.44 : 120,621.96 = 56,673.36 : x
  2. Step 2: Convert to fraction form
    80,380.44/120,621.96 = 56,673.36/x
  3. Step 3: Cross multiply
    80,380.44x = 120,621.96 × 56,673.36
  4. Step 4: Simplify right side
    80,380.44x = 6,836,051,762.99
  5. Step 5: Solve for x
    x = 6,836,051,762.99/80,380.44
  6. Step 6: Final answer
    x = 85,046.21

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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.