Home / 80,589.54-120,880.62-28,003.14

Finding the Fourth Proportional to 80,589.54, 120,880.62 and 28,003.14

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Solution

The fourth proportional to 80,589.54, 120,880.62 and 28,003.14 is: 42,003.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,589.54 : 120,880.62 = 28,003.14 : x
  2. Step 2: Convert to fraction form
    80,589.54/120,880.62 = 28,003.14/x
  3. Step 3: Cross multiply
    80,589.54x = 120,880.62 × 28,003.14
  4. Step 4: Simplify right side
    80,589.54x = 3,385,036,925.15
  5. Step 5: Solve for x
    x = 3,385,036,925.15/80,589.54
  6. Step 6: Final answer
    x = 42,003.43

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1.5x scale

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.