Home / 80,736.32-120,929.44-39,096

Finding the Fourth Proportional to 80,736.32, 120,929.44 and 39,096

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Solution

The fourth proportional to 80,736.32, 120,929.44 and 39,096 is: 58,559.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,736.32 : 120,929.44 = 39,096 : x
  2. Step 2: Convert to fraction form
    80,736.32/120,929.44 = 39,096/x
  3. Step 3: Cross multiply
    80,736.32x = 120,929.44 × 39,096
  4. Step 4: Simplify right side
    80,736.32x = 4,727,857,386.24
  5. Step 5: Solve for x
    x = 4,727,857,386.24/80,736.32
  6. Step 6: Final answer
    x = 58,559.24

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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.