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Finding the Fourth Proportional to 90,066.76, 135,106.92 and 26,881.92

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Solution

The fourth proportional to 90,066.76, 135,106.92 and 26,881.92 is: 40,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,066.76 : 135,106.92 = 26,881.92 : x
  2. Step 2: Convert to fraction form
    90,066.76/135,106.92 = 26,881.92/x
  3. Step 3: Cross multiply
    90,066.76x = 135,106.92 × 26,881.92
  4. Step 4: Simplify right side
    90,066.76x = 3,631,933,414.89
  5. Step 5: Solve for x
    x = 3,631,933,414.89/90,066.76
  6. Step 6: Final answer
    x = 40,324.90

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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.