Home / 82,268.91-123,403.36-19,939.41

Finding the Fourth Proportional to 82,268.91, 123,403.36 and 19,939.41

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Solution

The fourth proportional to 82,268.91, 123,403.36 and 19,939.41 is: 29,909.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,268.91 : 123,403.36 = 19,939.41 : x
  2. Step 2: Convert to fraction form
    82,268.91/123,403.36 = 19,939.41/x
  3. Step 3: Cross multiply
    82,268.91x = 123,403.36 × 19,939.41
  4. Step 4: Simplify right side
    82,268.91x = 2,460,590,140.57
  5. Step 5: Solve for x
    x = 2,460,590,140.57/82,268.91
  6. Step 6: Final answer
    x = 29,909.11

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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.