Home / 80,621.02-120,930.52-49,039.73

Finding the Fourth Proportional to 80,621.02, 120,930.52 and 49,039.73

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Solution

The fourth proportional to 80,621.02, 120,930.52 and 49,039.73 is: 73,558.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,621.02 : 120,930.52 = 49,039.73 : x
  2. Step 2: Convert to fraction form
    80,621.02/120,930.52 = 49,039.73/x
  3. Step 3: Cross multiply
    80,621.02x = 120,930.52 × 49,039.73
  4. Step 4: Simplify right side
    80,621.02x = 5,930,399,867.75
  5. Step 5: Solve for x
    x = 5,930,399,867.75/80,621.02
  6. Step 6: Final answer
    x = 73,558.98

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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.