Home / 215,691.12-323,538.75-57,919.59

Finding the Fourth Proportional to 215,691.12, 323,538.75 and 57,919.59

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Solution

The fourth proportional to 215,691.12, 323,538.75 and 57,919.59 is: 86,879.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,691.12 : 323,538.75 = 57,919.59 : x
  2. Step 2: Convert to fraction form
    215,691.12/323,538.75 = 57,919.59/x
  3. Step 3: Cross multiply
    215,691.12x = 323,538.75 × 57,919.59
  4. Step 4: Simplify right side
    215,691.12x = 18,739,231,749.11
  5. Step 5: Solve for x
    x = 18,739,231,749.11/215,691.12
  6. Step 6: Final answer
    x = 86,879.94

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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.