Home / 65,910.65-98,836.14-20,919.04

Finding the Fourth Proportional to 65,910.65, 98,836.14 and 20,919.04

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Solution

The fourth proportional to 65,910.65, 98,836.14 and 20,919.04 is: 31,369.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,910.65 : 98,836.14 = 20,919.04 : x
  2. Step 2: Convert to fraction form
    65,910.65/98,836.14 = 20,919.04/x
  3. Step 3: Cross multiply
    65,910.65x = 98,836.14 × 20,919.04
  4. Step 4: Simplify right side
    65,910.65x = 2,067,556,919.02
  5. Step 5: Solve for x
    x = 2,067,556,919.02/65,910.65
  6. Step 6: Final answer
    x = 31,369.09

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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.