Home / 80,566.96-120,733.74-45,431.92

Finding the Fourth Proportional to 80,566.96, 120,733.74 and 45,431.92

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Solution

The fourth proportional to 80,566.96, 120,733.74 and 45,431.92 is: 68,082.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,566.96 : 120,733.74 = 45,431.92 : x
  2. Step 2: Convert to fraction form
    80,566.96/120,733.74 = 45,431.92/x
  3. Step 3: Cross multiply
    80,566.96x = 120,733.74 × 45,431.92
  4. Step 4: Simplify right side
    80,566.96x = 5,485,165,616.98
  5. Step 5: Solve for x
    x = 5,485,165,616.98/80,566.96
  6. Step 6: Final answer
    x = 68,082.07

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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.