Home / 65,912.15-90,965.30-37,622.09

Finding the Fourth Proportional to 65,912.15, 90,965.30 and 37,622.09

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Solution

The fourth proportional to 65,912.15, 90,965.30 and 37,622.09 is: 51,922.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,912.15 : 90,965.30 = 37,622.09 : x
  2. Step 2: Convert to fraction form
    65,912.15/90,965.30 = 37,622.09/x
  3. Step 3: Cross multiply
    65,912.15x = 90,965.30 × 37,622.09
  4. Step 4: Simplify right side
    65,912.15x = 3,422,304,060.54
  5. Step 5: Solve for x
    x = 3,422,304,060.54/65,912.15
  6. Step 6: Final answer
    x = 51,922.21

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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.