Home / 72,183.24-108,246.18-27,785.40

Finding the Fourth Proportional to 72,183.24, 108,246.18 and 27,785.40

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Solution

The fourth proportional to 72,183.24, 108,246.18 and 27,785.40 is: 41,667.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,183.24 : 108,246.18 = 27,785.40 : x
  2. Step 2: Convert to fraction form
    72,183.24/108,246.18 = 27,785.40/x
  3. Step 3: Cross multiply
    72,183.24x = 108,246.18 × 27,785.40
  4. Step 4: Simplify right side
    72,183.24x = 3,007,663,409.77
  5. Step 5: Solve for x
    x = 3,007,663,409.77/72,183.24
  6. Step 6: Final answer
    x = 41,667.06

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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.