Home / 68,989.14-95,205.35-40,310.45

Finding the Fourth Proportional to 68,989.14, 95,205.35 and 40,310.45

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Solution

The fourth proportional to 68,989.14, 95,205.35 and 40,310.45 is: 55,628.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,989.14 : 95,205.35 = 40,310.45 : x
  2. Step 2: Convert to fraction form
    68,989.14/95,205.35 = 40,310.45/x
  3. Step 3: Cross multiply
    68,989.14x = 95,205.35 × 40,310.45
  4. Step 4: Simplify right side
    68,989.14x = 3,837,769,823.33
  5. Step 5: Solve for x
    x = 3,837,769,823.33/68,989.14
  6. Step 6: Final answer
    x = 55,628.61

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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.