Home / 90,022.20-134,949.81-30,843.81

Finding the Fourth Proportional to 90,022.20, 134,949.81 and 30,843.81

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Solution

The fourth proportional to 90,022.20, 134,949.81 and 30,843.81 is: 46,237.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,022.20 : 134,949.81 = 30,843.81 : x
  2. Step 2: Convert to fraction form
    90,022.20/134,949.81 = 30,843.81/x
  3. Step 3: Cross multiply
    90,022.20x = 134,949.81 × 30,843.81
  4. Step 4: Simplify right side
    90,022.20x = 4,162,366,299.18
  5. Step 5: Solve for x
    x = 4,162,366,299.18/90,022.20
  6. Step 6: Final answer
    x = 46,237.11

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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.