Home / 80,081.54-120,165.09-51,994.94

Finding the Fourth Proportional to 80,081.54, 120,165.09 and 51,994.94

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Solution

The fourth proportional to 80,081.54, 120,165.09 and 51,994.94 is: 78,020.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,081.54 : 120,165.09 = 51,994.94 : x
  2. Step 2: Convert to fraction form
    80,081.54/120,165.09 = 51,994.94/x
  3. Step 3: Cross multiply
    80,081.54x = 120,165.09 × 51,994.94
  4. Step 4: Simplify right side
    80,081.54x = 6,247,976,644.64
  5. Step 5: Solve for x
    x = 6,247,976,644.64/80,081.54
  6. Step 6: Final answer
    x = 78,020.19

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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.