Home / 65,949.88-98,936.97-21,579.12

Finding the Fourth Proportional to 65,949.88, 98,936.97 and 21,579.12

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Solution

The fourth proportional to 65,949.88, 98,936.97 and 21,579.12 is: 32,372.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,949.88 : 98,936.97 = 21,579.12 : x
  2. Step 2: Convert to fraction form
    65,949.88/98,936.97 = 21,579.12/x
  3. Step 3: Cross multiply
    65,949.88x = 98,936.97 × 21,579.12
  4. Step 4: Simplify right side
    65,949.88x = 2,134,972,748.07
  5. Step 5: Solve for x
    x = 2,134,972,748.07/65,949.88
  6. Step 6: Final answer
    x = 32,372.66

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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.