Home / 80,941.20-111,571.20-60,768.96

Finding the Fourth Proportional to 80,941.20, 111,571.20 and 60,768.96

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Solution

The fourth proportional to 80,941.20, 111,571.20 and 60,768.96 is: 83,765.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,941.20 : 111,571.20 = 60,768.96 : x
  2. Step 2: Convert to fraction form
    80,941.20/111,571.20 = 60,768.96/x
  3. Step 3: Cross multiply
    80,941.20x = 111,571.20 × 60,768.96
  4. Step 4: Simplify right side
    80,941.20x = 6,780,065,789.95
  5. Step 5: Solve for x
    x = 6,780,065,789.95/80,941.20
  6. Step 6: Final answer
    x = 83,765.32

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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.