Home / 76,519.45-114,787.91-20,361.88

Finding the Fourth Proportional to 76,519.45, 114,787.91 and 20,361.88

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Solution

The fourth proportional to 76,519.45, 114,787.91 and 20,361.88 is: 30,545.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,519.45 : 114,787.91 = 20,361.88 : x
  2. Step 2: Convert to fraction form
    76,519.45/114,787.91 = 20,361.88/x
  3. Step 3: Cross multiply
    76,519.45x = 114,787.91 × 20,361.88
  4. Step 4: Simplify right side
    76,519.45x = 2,337,297,648.87
  5. Step 5: Solve for x
    x = 2,337,297,648.87/76,519.45
  6. Step 6: Final answer
    x = 30,545.14

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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.