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Finding the Fourth Proportional to 82,538.88, 123,788.52 and 38,123.04

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Solution

The fourth proportional to 82,538.88, 123,788.52 and 38,123.04 is: 57,175.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,538.88 : 123,788.52 = 38,123.04 : x
  2. Step 2: Convert to fraction form
    82,538.88/123,788.52 = 38,123.04/x
  3. Step 3: Cross multiply
    82,538.88x = 123,788.52 × 38,123.04
  4. Step 4: Simplify right side
    82,538.88x = 4,719,194,699.50
  5. Step 5: Solve for x
    x = 4,719,194,699.50/82,538.88
  6. Step 6: Final answer
    x = 57,175.41

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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.