Home / 80,234.68-120,267.24-42,771.64

Finding the Fourth Proportional to 80,234.68, 120,267.24 and 42,771.64

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Solution

The fourth proportional to 80,234.68, 120,267.24 and 42,771.64 is: 64,112.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,234.68 : 120,267.24 = 42,771.64 : x
  2. Step 2: Convert to fraction form
    80,234.68/120,267.24 = 42,771.64/x
  3. Step 3: Cross multiply
    80,234.68x = 120,267.24 × 42,771.64
  4. Step 4: Simplify right side
    80,234.68x = 5,144,027,093.07
  5. Step 5: Solve for x
    x = 5,144,027,093.07/80,234.68
  6. Step 6: Final answer
    x = 64,112.27

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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.