Home / 68,989.12-95,183.57-40,288.07

Finding the Fourth Proportional to 68,989.12, 95,183.57 and 40,288.07

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Solution

The fourth proportional to 68,989.12, 95,183.57 and 40,288.07 is: 55,585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,989.12 : 95,183.57 = 40,288.07 : x
  2. Step 2: Convert to fraction form
    68,989.12/95,183.57 = 40,288.07/x
  3. Step 3: Cross multiply
    68,989.12x = 95,183.57 × 40,288.07
  4. Step 4: Simplify right side
    68,989.12x = 3,834,762,669.69
  5. Step 5: Solve for x
    x = 3,834,762,669.69/68,989.12
  6. Step 6: Final answer
    x = 55,585.04

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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.