Home / 82,265.63-123,399.11-19,936.13

Finding the Fourth Proportional to 82,265.63, 123,399.11 and 19,936.13

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Solution

The fourth proportional to 82,265.63, 123,399.11 and 19,936.13 is: 29,904.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,265.63 : 123,399.11 = 19,936.13 : x
  2. Step 2: Convert to fraction form
    82,265.63/123,399.11 = 19,936.13/x
  3. Step 3: Cross multiply
    82,265.63x = 123,399.11 × 19,936.13
  4. Step 4: Simplify right side
    82,265.63x = 2,460,100,131.69
  5. Step 5: Solve for x
    x = 2,460,100,131.69/82,265.63
  6. Step 6: Final answer
    x = 29,904.35

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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.