Home / 90,983.68-136,495.44-27,809.04

Finding the Fourth Proportional to 90,983.68, 136,495.44 and 27,809.04

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Solution

The fourth proportional to 90,983.68, 136,495.44 and 27,809.04 is: 41,719.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,983.68 : 136,495.44 = 27,809.04 : x
  2. Step 2: Convert to fraction form
    90,983.68/136,495.44 = 27,809.04/x
  3. Step 3: Cross multiply
    90,983.68x = 136,495.44 × 27,809.04
  4. Step 4: Simplify right side
    90,983.68x = 3,795,807,150.78
  5. Step 5: Solve for x
    x = 3,795,807,150.78/90,983.68
  6. Step 6: Final answer
    x = 41,719.65

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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.