Home / 72,191.20-108,299.10-22,270.36

Finding the Fourth Proportional to 72,191.20, 108,299.10 and 22,270.36

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Solution

The fourth proportional to 72,191.20, 108,299.10 and 22,270.36 is: 33,409.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,191.20 : 108,299.10 = 22,270.36 : x
  2. Step 2: Convert to fraction form
    72,191.20/108,299.10 = 22,270.36/x
  3. Step 3: Cross multiply
    72,191.20x = 108,299.10 × 22,270.36
  4. Step 4: Simplify right side
    72,191.20x = 2,411,859,944.68
  5. Step 5: Solve for x
    x = 2,411,859,944.68/72,191.20
  6. Step 6: Final answer
    x = 33,409.33

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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.