Home / 72,878.20-109,317.30-41,691.58

Finding the Fourth Proportional to 72,878.20, 109,317.30 and 41,691.58

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Solution

The fourth proportional to 72,878.20, 109,317.30 and 41,691.58 is: 62,537.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,878.20 : 109,317.30 = 41,691.58 : x
  2. Step 2: Convert to fraction form
    72,878.20/109,317.30 = 41,691.58/x
  3. Step 3: Cross multiply
    72,878.20x = 109,317.30 × 41,691.58
  4. Step 4: Simplify right side
    72,878.20x = 4,557,610,958.33
  5. Step 5: Solve for x
    x = 4,557,610,958.33/72,878.20
  6. Step 6: Final answer
    x = 62,537.37

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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.