Home / 66,469.26-91,736.25-38,175.15

Finding the Fourth Proportional to 66,469.26, 91,736.25 and 38,175.15

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Solution

The fourth proportional to 66,469.26, 91,736.25 and 38,175.15 is: 52,686.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,469.26 : 91,736.25 = 38,175.15 : x
  2. Step 2: Convert to fraction form
    66,469.26/91,736.25 = 38,175.15/x
  3. Step 3: Cross multiply
    66,469.26x = 91,736.25 × 38,175.15
  4. Step 4: Simplify right side
    66,469.26x = 3,502,045,104.19
  5. Step 5: Solve for x
    x = 3,502,045,104.19/66,469.26
  6. Step 6: Final answer
    x = 52,686.69

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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.