Home / 76,766.62-115,134.06-20,593.41

Finding the Fourth Proportional to 76,766.62, 115,134.06 and 20,593.41

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Solution

The fourth proportional to 76,766.62, 115,134.06 and 20,593.41 is: 30,885.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,766.62 : 115,134.06 = 20,593.41 : x
  2. Step 2: Convert to fraction form
    76,766.62/115,134.06 = 20,593.41/x
  3. Step 3: Cross multiply
    76,766.62x = 115,134.06 × 20,593.41
  4. Step 4: Simplify right side
    76,766.62x = 2,371,003,403.62
  5. Step 5: Solve for x
    x = 2,371,003,403.62/76,766.62
  6. Step 6: Final answer
    x = 30,885.86

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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.