Home / 90,914.23-136,371.44-27,731

Finding the Fourth Proportional to 90,914.23, 136,371.44 and 27,731

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Solution

The fourth proportional to 90,914.23, 136,371.44 and 27,731 is: 41,596.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,914.23 : 136,371.44 = 27,731 : x
  2. Step 2: Convert to fraction form
    90,914.23/136,371.44 = 27,731/x
  3. Step 3: Cross multiply
    90,914.23x = 136,371.44 × 27,731
  4. Step 4: Simplify right side
    90,914.23x = 3,781,716,402.64
  5. Step 5: Solve for x
    x = 3,781,716,402.64/90,914.23
  6. Step 6: Final answer
    x = 41,596.53

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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.