Home / 66,385.36-91,616.33-40,554.97

Finding the Fourth Proportional to 66,385.36, 91,616.33 and 40,554.97

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Solution

The fourth proportional to 66,385.36, 91,616.33 and 40,554.97 is: 55,968.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,385.36 : 91,616.33 = 40,554.97 : x
  2. Step 2: Convert to fraction form
    66,385.36/91,616.33 = 40,554.97/x
  3. Step 3: Cross multiply
    66,385.36x = 91,616.33 × 40,554.97
  4. Step 4: Simplify right side
    66,385.36x = 3,715,497,514.66
  5. Step 5: Solve for x
    x = 3,715,497,514.66/66,385.36
  6. Step 6: Final answer
    x = 55,968.63

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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.