Home / 90,835.96-136,237.90-27,640.84

Finding the Fourth Proportional to 90,835.96, 136,237.90 and 27,640.84

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Solution

The fourth proportional to 90,835.96, 136,237.90 and 27,640.84 is: 41,456.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,835.96 : 136,237.90 = 27,640.84 : x
  2. Step 2: Convert to fraction form
    90,835.96/136,237.90 = 27,640.84/x
  3. Step 3: Cross multiply
    90,835.96x = 136,237.90 × 27,640.84
  4. Step 4: Simplify right side
    90,835.96x = 3,765,729,995.84
  5. Step 5: Solve for x
    x = 3,765,729,995.84/90,835.96
  6. Step 6: Final answer
    x = 41,456.38

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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.