Home / 80,819.80-111,541.52-48,984.64

Finding the Fourth Proportional to 80,819.80, 111,541.52 and 48,984.64

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Solution

The fourth proportional to 80,819.80, 111,541.52 and 48,984.64 is: 67,604.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,819.80 : 111,541.52 = 48,984.64 : x
  2. Step 2: Convert to fraction form
    80,819.80/111,541.52 = 48,984.64/x
  3. Step 3: Cross multiply
    80,819.80x = 111,541.52 × 48,984.64
  4. Step 4: Simplify right side
    80,819.80x = 5,463,821,202.25
  5. Step 5: Solve for x
    x = 5,463,821,202.25/80,819.80
  6. Step 6: Final answer
    x = 67,604.98

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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.