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Finding the Fourth Proportional to 80,392.10, 120,600.03 and 27,787.46

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Solution

The fourth proportional to 80,392.10, 120,600.03 and 27,787.46 is: 41,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,392.10 : 120,600.03 = 27,787.46 : x
  2. Step 2: Convert to fraction form
    80,392.10/120,600.03 = 27,787.46/x
  3. Step 3: Cross multiply
    80,392.10x = 120,600.03 × 27,787.46
  4. Step 4: Simplify right side
    80,392.10x = 3,351,168,509.62
  5. Step 5: Solve for x
    x = 3,351,168,509.62/80,392.10
  6. Step 6: Final answer
    x = 41,685.30

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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.