Home / 80,461.12-120,589.54-36,086.08

Finding the Fourth Proportional to 80,461.12, 120,589.54 and 36,086.08

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Solution

The fourth proportional to 80,461.12, 120,589.54 and 36,086.08 is: 54,083.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,461.12 : 120,589.54 = 36,086.08 : x
  2. Step 2: Convert to fraction form
    80,461.12/120,589.54 = 36,086.08/x
  3. Step 3: Cross multiply
    80,461.12x = 120,589.54 × 36,086.08
  4. Step 4: Simplify right side
    80,461.12x = 4,351,603,787.60
  5. Step 5: Solve for x
    x = 4,351,603,787.60/80,461.12
  6. Step 6: Final answer
    x = 54,083.31

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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.