Home / 90,649.32-135,993.24-38,028.48

Finding the Fourth Proportional to 90,649.32, 135,993.24 and 38,028.48

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Solution

The fourth proportional to 90,649.32, 135,993.24 and 38,028.48 is: 57,050.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,649.32 : 135,993.24 = 38,028.48 : x
  2. Step 2: Convert to fraction form
    90,649.32/135,993.24 = 38,028.48/x
  3. Step 3: Cross multiply
    90,649.32x = 135,993.24 × 38,028.48
  4. Step 4: Simplify right side
    90,649.32x = 5,171,616,207.48
  5. Step 5: Solve for x
    x = 5,171,616,207.48/90,649.32
  6. Step 6: Final answer
    x = 57,050.80

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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.