Home / 80,672.45-111,330.69-44,375.43

Finding the Fourth Proportional to 80,672.45, 111,330.69 and 44,375.43

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Solution

The fourth proportional to 80,672.45, 111,330.69 and 44,375.43 is: 61,239.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,672.45 : 111,330.69 = 44,375.43 : x
  2. Step 2: Convert to fraction form
    80,672.45/111,330.69 = 44,375.43/x
  3. Step 3: Cross multiply
    80,672.45x = 111,330.69 × 44,375.43
  4. Step 4: Simplify right side
    80,672.45x = 4,940,347,492.03
  5. Step 5: Solve for x
    x = 4,940,347,492.03/80,672.45
  6. Step 6: Final answer
    x = 61,239.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.