Home / 80,942.81-121,385.06-34,199.33

Finding the Fourth Proportional to 80,942.81, 121,385.06 and 34,199.33

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Solution

The fourth proportional to 80,942.81, 121,385.06 and 34,199.33 is: 51,286.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,942.81 : 121,385.06 = 34,199.33 : x
  2. Step 2: Convert to fraction form
    80,942.81/121,385.06 = 34,199.33/x
  3. Step 3: Cross multiply
    80,942.81x = 121,385.06 × 34,199.33
  4. Step 4: Simplify right side
    80,942.81x = 4,151,287,553.01
  5. Step 5: Solve for x
    x = 4,151,287,553.01/80,942.81
  6. Step 6: Final answer
    x = 51,286.67

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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.