Home / 53,305.20-79,936.20-18,226.80

Finding the Fourth Proportional to 53,305.20, 79,936.20 and 18,226.80

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Solution

The fourth proportional to 53,305.20, 79,936.20 and 18,226.80 is: 27,332.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,305.20 : 79,936.20 = 18,226.80 : x
  2. Step 2: Convert to fraction form
    53,305.20/79,936.20 = 18,226.80/x
  3. Step 3: Cross multiply
    53,305.20x = 79,936.20 × 18,226.80
  4. Step 4: Simplify right side
    53,305.20x = 1,456,981,130.16
  5. Step 5: Solve for x
    x = 1,456,981,130.16/53,305.20
  6. Step 6: Final answer
    x = 27,332.81

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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.