Home / 80,512.38-120,741.23-30,580.44

Finding the Fourth Proportional to 80,512.38, 120,741.23 and 30,580.44

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Solution

The fourth proportional to 80,512.38, 120,741.23 and 30,580.44 is: 45,860.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,512.38 : 120,741.23 = 30,580.44 : x
  2. Step 2: Convert to fraction form
    80,512.38/120,741.23 = 30,580.44/x
  3. Step 3: Cross multiply
    80,512.38x = 120,741.23 × 30,580.44
  4. Step 4: Simplify right side
    80,512.38x = 3,692,319,563.21
  5. Step 5: Solve for x
    x = 3,692,319,563.21/80,512.38
  6. Step 6: Final answer
    x = 45,860.27

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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.