Home / 72,409.20-108,562.32-27,998.52

Finding the Fourth Proportional to 72,409.20, 108,562.32 and 27,998.52

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Solution

The fourth proportional to 72,409.20, 108,562.32 and 27,998.52 is: 41,977.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,409.20 : 108,562.32 = 27,998.52 : x
  2. Step 2: Convert to fraction form
    72,409.20/108,562.32 = 27,998.52/x
  3. Step 3: Cross multiply
    72,409.20x = 108,562.32 × 27,998.52
  4. Step 4: Simplify right side
    72,409.20x = 3,039,584,287.77
  5. Step 5: Solve for x
    x = 3,039,584,287.77/72,409.20
  6. Step 6: Final answer
    x = 41,977.87

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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.