Home / 80,639.88-120,996.54-41,176.68

Finding the Fourth Proportional to 80,639.88, 120,996.54 and 41,176.68

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Solution

The fourth proportional to 80,639.88, 120,996.54 and 41,176.68 is: 61,783.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,639.88 : 120,996.54 = 41,176.68 : x
  2. Step 2: Convert to fraction form
    80,639.88/120,996.54 = 41,176.68/x
  3. Step 3: Cross multiply
    80,639.88x = 120,996.54 × 41,176.68
  4. Step 4: Simplify right side
    80,639.88x = 4,982,235,808.69
  5. Step 5: Solve for x
    x = 4,982,235,808.69/80,639.88
  6. Step 6: Final answer
    x = 61,783.77

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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.