Home / 68,983.71-95,180.91-40,287.09

Finding the Fourth Proportional to 68,983.71, 95,180.91 and 40,287.09

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Solution

The fourth proportional to 68,983.71, 95,180.91 and 40,287.09 is: 55,586.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,983.71 : 95,180.91 = 40,287.09 : x
  2. Step 2: Convert to fraction form
    68,983.71/95,180.91 = 40,287.09/x
  3. Step 3: Cross multiply
    68,983.71x = 95,180.91 × 40,287.09
  4. Step 4: Simplify right side
    68,983.71x = 3,834,561,887.45
  5. Step 5: Solve for x
    x = 3,834,561,887.45/68,983.71
  6. Step 6: Final answer
    x = 55,586.48

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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.