Home / 82,540.96-123,805.77-38,203.18

Finding the Fourth Proportional to 82,540.96, 123,805.77 and 38,203.18

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Solution

The fourth proportional to 82,540.96, 123,805.77 and 38,203.18 is: 57,302.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,540.96 : 123,805.77 = 38,203.18 : x
  2. Step 2: Convert to fraction form
    82,540.96/123,805.77 = 38,203.18/x
  3. Step 3: Cross multiply
    82,540.96x = 123,805.77 × 38,203.18
  4. Step 4: Simplify right side
    82,540.96x = 4,729,774,116.35
  5. Step 5: Solve for x
    x = 4,729,774,116.35/82,540.96
  6. Step 6: Final answer
    x = 57,302.15

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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.