Home / 90,203.42-135,289.28-27,874.46

Finding the Fourth Proportional to 90,203.42, 135,289.28 and 27,874.46

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Solution

The fourth proportional to 90,203.42, 135,289.28 and 27,874.46 is: 41,806.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,203.42 : 135,289.28 = 27,874.46 : x
  2. Step 2: Convert to fraction form
    90,203.42/135,289.28 = 27,874.46/x
  3. Step 3: Cross multiply
    90,203.42x = 135,289.28 × 27,874.46
  4. Step 4: Simplify right side
    90,203.42x = 3,771,115,623.79
  5. Step 5: Solve for x
    x = 3,771,115,623.79/90,203.42
  6. Step 6: Final answer
    x = 41,806.79

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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.