Home / 68,112.52-102,035.94-38,440.60

Finding the Fourth Proportional to 68,112.52, 102,035.94 and 38,440.60

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Solution

The fourth proportional to 68,112.52, 102,035.94 and 38,440.60 is: 57,585.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,112.52 : 102,035.94 = 38,440.60 : x
  2. Step 2: Convert to fraction form
    68,112.52/102,035.94 = 38,440.60/x
  3. Step 3: Cross multiply
    68,112.52x = 102,035.94 × 38,440.60
  4. Step 4: Simplify right side
    68,112.52x = 3,922,322,755.16
  5. Step 5: Solve for x
    x = 3,922,322,755.16/68,112.52
  6. Step 6: Final answer
    x = 57,585.93

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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.