Home / 90,634.48-135,971.16-38,013.64

Finding the Fourth Proportional to 90,634.48, 135,971.16 and 38,013.64

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Solution

The fourth proportional to 90,634.48, 135,971.16 and 38,013.64 is: 57,028.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,634.48 : 135,971.16 = 38,013.64 : x
  2. Step 2: Convert to fraction form
    90,634.48/135,971.16 = 38,013.64/x
  3. Step 3: Cross multiply
    90,634.48x = 135,971.16 × 38,013.64
  4. Step 4: Simplify right side
    90,634.48x = 5,168,758,726.62
  5. Step 5: Solve for x
    x = 5,168,758,726.62/90,634.48
  6. Step 6: Final answer
    x = 57,028.61

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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.