Home / 80,768.92-121,178.19-41,353.72

Finding the Fourth Proportional to 80,768.92, 121,178.19 and 41,353.72

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Solution

The fourth proportional to 80,768.92, 121,178.19 and 41,353.72 is: 62,043.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,768.92 : 121,178.19 = 41,353.72 : x
  2. Step 2: Convert to fraction form
    80,768.92/121,178.19 = 41,353.72/x
  3. Step 3: Cross multiply
    80,768.92x = 121,178.19 × 41,353.72
  4. Step 4: Simplify right side
    80,768.92x = 5,011,168,939.37
  5. Step 5: Solve for x
    x = 5,011,168,939.37/80,768.92
  6. Step 6: Final answer
    x = 62,043.28

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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.