Home / 65,790.29-98,691.68-18,405.38

Finding the Fourth Proportional to 65,790.29, 98,691.68 and 18,405.38

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Solution

The fourth proportional to 65,790.29, 98,691.68 and 18,405.38 is: 27,609.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,790.29 : 98,691.68 = 18,405.38 : x
  2. Step 2: Convert to fraction form
    65,790.29/98,691.68 = 18,405.38/x
  3. Step 3: Cross multiply
    65,790.29x = 98,691.68 × 18,405.38
  4. Step 4: Simplify right side
    65,790.29x = 1,816,458,027.94
  5. Step 5: Solve for x
    x = 1,816,458,027.94/65,790.29
  6. Step 6: Final answer
    x = 27,609.82

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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.