Home / 80,243.02-120,380.73-55,295.02

Finding the Fourth Proportional to 80,243.02, 120,380.73 and 55,295.02

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Solution

The fourth proportional to 80,243.02, 120,380.73 and 55,295.02 is: 82,953.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,243.02 : 120,380.73 = 55,295.02 : x
  2. Step 2: Convert to fraction form
    80,243.02/120,380.73 = 55,295.02/x
  3. Step 3: Cross multiply
    80,243.02x = 120,380.73 × 55,295.02
  4. Step 4: Simplify right side
    80,243.02x = 6,656,454,872.96
  5. Step 5: Solve for x
    x = 6,656,454,872.96/80,243.02
  6. Step 6: Final answer
    x = 82,953.69

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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.