Home / 65,936.20-90,992.15-35,721.38

Finding the Fourth Proportional to 65,936.20, 90,992.15 and 35,721.38

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Solution

The fourth proportional to 65,936.20, 90,992.15 and 35,721.38 is: 49,295.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,936.20 : 90,992.15 = 35,721.38 : x
  2. Step 2: Convert to fraction form
    65,936.20/90,992.15 = 35,721.38/x
  3. Step 3: Cross multiply
    65,936.20x = 90,992.15 × 35,721.38
  4. Step 4: Simplify right side
    65,936.20x = 3,250,365,167.17
  5. Step 5: Solve for x
    x = 3,250,365,167.17/65,936.20
  6. Step 6: Final answer
    x = 49,295.61

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1.5x scale

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.