Home / 80,738.72-121,077.36-36,932

Finding the Fourth Proportional to 80,738.72, 121,077.36 and 36,932

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Solution

The fourth proportional to 80,738.72, 121,077.36 and 36,932 is: 55,383.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,738.72 : 121,077.36 = 36,932 : x
  2. Step 2: Convert to fraction form
    80,738.72/121,077.36 = 36,932/x
  3. Step 3: Cross multiply
    80,738.72x = 121,077.36 × 36,932
  4. Step 4: Simplify right side
    80,738.72x = 4,471,629,059.52
  5. Step 5: Solve for x
    x = 4,471,629,059.52/80,738.72
  6. Step 6: Final answer
    x = 55,383.95

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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.