Home / 66,785.97-100,228-53,795.19

Finding the Fourth Proportional to 66,785.97, 100,228 and 53,795.19

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Solution

The fourth proportional to 66,785.97, 100,228 and 53,795.19 is: 80,732.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,785.97 : 100,228 = 53,795.19 : x
  2. Step 2: Convert to fraction form
    66,785.97/100,228 = 53,795.19/x
  3. Step 3: Cross multiply
    66,785.97x = 100,228 × 53,795.19
  4. Step 4: Simplify right side
    66,785.97x = 5,391,784,303.32
  5. Step 5: Solve for x
    x = 5,391,784,303.32/66,785.97
  6. Step 6: Final answer
    x = 80,732.29

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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.