Home / 66,217.91-99,324.66-28,778.02

Finding the Fourth Proportional to 66,217.91, 99,324.66 and 28,778.02

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Solution

The fourth proportional to 66,217.91, 99,324.66 and 28,778.02 is: 43,166.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,217.91 : 99,324.66 = 28,778.02 : x
  2. Step 2: Convert to fraction form
    66,217.91/99,324.66 = 28,778.02/x
  3. Step 3: Cross multiply
    66,217.91x = 99,324.66 × 28,778.02
  4. Step 4: Simplify right side
    66,217.91x = 2,858,367,051.97
  5. Step 5: Solve for x
    x = 2,858,367,051.97/66,217.91
  6. Step 6: Final answer
    x = 43,166.07

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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.