Home / 80,091.24-120,212.16-40,676.64

Finding the Fourth Proportional to 80,091.24, 120,212.16 and 40,676.64

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Solution

The fourth proportional to 80,091.24, 120,212.16 and 40,676.64 is: 61,053.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,091.24 : 120,212.16 = 40,676.64 : x
  2. Step 2: Convert to fraction form
    80,091.24/120,212.16 = 40,676.64/x
  3. Step 3: Cross multiply
    80,091.24x = 120,212.16 × 40,676.64
  4. Step 4: Simplify right side
    80,091.24x = 4,889,826,755.94
  5. Step 5: Solve for x
    x = 4,889,826,755.94/80,091.24
  6. Step 6: Final answer
    x = 61,053.20

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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.