Home / 66,834.07-100,257.26-21,855.66

Finding the Fourth Proportional to 66,834.07, 100,257.26 and 21,855.66

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Solution

The fourth proportional to 66,834.07, 100,257.26 and 21,855.66 is: 32,785.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,834.07 : 100,257.26 = 21,855.66 : x
  2. Step 2: Convert to fraction form
    66,834.07/100,257.26 = 21,855.66/x
  3. Step 3: Cross multiply
    66,834.07x = 100,257.26 × 21,855.66
  4. Step 4: Simplify right side
    66,834.07x = 2,191,188,568.23
  5. Step 5: Solve for x
    x = 2,191,188,568.23/66,834.07
  6. Step 6: Final answer
    x = 32,785.50

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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.