Home / 82,265.58-123,399-19,936.08

Finding the Fourth Proportional to 82,265.58, 123,399 and 19,936.08

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Solution

The fourth proportional to 82,265.58, 123,399 and 19,936.08 is: 29,904.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,265.58 : 123,399 = 19,936.08 : x
  2. Step 2: Convert to fraction form
    82,265.58/123,399 = 19,936.08/x
  3. Step 3: Cross multiply
    82,265.58x = 123,399 × 19,936.08
  4. Step 4: Simplify right side
    82,265.58x = 2,460,092,335.92
  5. Step 5: Solve for x
    x = 2,460,092,335.92/82,265.58
  6. Step 6: Final answer
    x = 29,904.27

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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.