Home / 55,279.38-82,936.60-19,739.92

Finding the Fourth Proportional to 55,279.38, 82,936.60 and 19,739.92

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Solution

The fourth proportional to 55,279.38, 82,936.60 and 19,739.92 is: 29,616.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,279.38 : 82,936.60 = 19,739.92 : x
  2. Step 2: Convert to fraction form
    55,279.38/82,936.60 = 19,739.92/x
  3. Step 3: Cross multiply
    55,279.38x = 82,936.60 × 19,739.92
  4. Step 4: Simplify right side
    55,279.38x = 1,637,161,849.07
  5. Step 5: Solve for x
    x = 1,637,161,849.07/55,279.38
  6. Step 6: Final answer
    x = 29,616.14

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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.