Home / 80,645.24-120,967.88-43,942.52

Finding the Fourth Proportional to 80,645.24, 120,967.88 and 43,942.52

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Solution

The fourth proportional to 80,645.24, 120,967.88 and 43,942.52 is: 65,913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,645.24 : 120,967.88 = 43,942.52 : x
  2. Step 2: Convert to fraction form
    80,645.24/120,967.88 = 43,942.52/x
  3. Step 3: Cross multiply
    80,645.24x = 120,967.88 × 43,942.52
  4. Step 4: Simplify right side
    80,645.24x = 5,315,633,486.26
  5. Step 5: Solve for x
    x = 5,315,633,486.26/80,645.24
  6. Step 6: Final answer
    x = 65,913.79

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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.