Home / 76,943.52-106,183.44-45,135.36

Finding the Fourth Proportional to 76,943.52, 106,183.44 and 45,135.36

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Solution

The fourth proportional to 76,943.52, 106,183.44 and 45,135.36 is: 62,287.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,943.52 : 106,183.44 = 45,135.36 : x
  2. Step 2: Convert to fraction form
    76,943.52/106,183.44 = 45,135.36/x
  3. Step 3: Cross multiply
    76,943.52x = 106,183.44 × 45,135.36
  4. Step 4: Simplify right side
    76,943.52x = 4,792,627,790.44
  5. Step 5: Solve for x
    x = 4,792,627,790.44/76,943.52
  6. Step 6: Final answer
    x = 62,287.61

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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.