Home / 65,933.88-98,855.78-31,721.60

Finding the Fourth Proportional to 65,933.88, 98,855.78 and 31,721.60

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Solution

The fourth proportional to 65,933.88, 98,855.78 and 31,721.60 is: 47,560.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,933.88 : 98,855.78 = 31,721.60 : x
  2. Step 2: Convert to fraction form
    65,933.88/98,855.78 = 31,721.60/x
  3. Step 3: Cross multiply
    65,933.88x = 98,855.78 × 31,721.60
  4. Step 4: Simplify right side
    65,933.88x = 3,135,862,857.96
  5. Step 5: Solve for x
    x = 3,135,862,857.96/65,933.88
  6. Step 6: Final answer
    x = 47,560.72

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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.