Home / 66,634.68-91,896.33-55,286.21

Finding the Fourth Proportional to 66,634.68, 91,896.33 and 55,286.21

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Solution

The fourth proportional to 66,634.68, 91,896.33 and 55,286.21 is: 76,245.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,634.68 : 91,896.33 = 55,286.21 : x
  2. Step 2: Convert to fraction form
    66,634.68/91,896.33 = 55,286.21/x
  3. Step 3: Cross multiply
    66,634.68x = 91,896.33 × 55,286.21
  4. Step 4: Simplify right side
    66,634.68x = 5,080,599,339.13
  5. Step 5: Solve for x
    x = 5,080,599,339.13/66,634.68
  6. Step 6: Final answer
    x = 76,245.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.