Home / 90,708.26-135,997.36-42,649.97

Finding the Fourth Proportional to 90,708.26, 135,997.36 and 42,649.97

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Solution

The fourth proportional to 90,708.26, 135,997.36 and 42,649.97 is: 63,944.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,708.26 : 135,997.36 = 42,649.97 : x
  2. Step 2: Convert to fraction form
    90,708.26/135,997.36 = 42,649.97/x
  3. Step 3: Cross multiply
    90,708.26x = 135,997.36 × 42,649.97
  4. Step 4: Simplify right side
    90,708.26x = 5,800,282,537.47
  5. Step 5: Solve for x
    x = 5,800,282,537.47/90,708.26
  6. Step 6: Final answer
    x = 63,944.37

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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.