Home / 83,361.10-115,039.50-47,064.61

Finding the Fourth Proportional to 83,361.10, 115,039.50 and 47,064.61

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Solution

The fourth proportional to 83,361.10, 115,039.50 and 47,064.61 is: 64,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,361.10 : 115,039.50 = 47,064.61 : x
  2. Step 2: Convert to fraction form
    83,361.10/115,039.50 = 47,064.61/x
  3. Step 3: Cross multiply
    83,361.10x = 115,039.50 × 47,064.61
  4. Step 4: Simplify right side
    83,361.10x = 5,414,289,202.10
  5. Step 5: Solve for x
    x = 5,414,289,202.10/83,361.10
  6. Step 6: Final answer
    x = 64,949.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.