Home / 66,067.72-91,170.54-37,775.26

Finding the Fourth Proportional to 66,067.72, 91,170.54 and 37,775.26

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Solution

The fourth proportional to 66,067.72, 91,170.54 and 37,775.26 is: 52,128.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,067.72 : 91,170.54 = 37,775.26 : x
  2. Step 2: Convert to fraction form
    66,067.72/91,170.54 = 37,775.26/x
  3. Step 3: Cross multiply
    66,067.72x = 91,170.54 × 37,775.26
  4. Step 4: Simplify right side
    66,067.72x = 3,443,990,852.84
  5. Step 5: Solve for x
    x = 3,443,990,852.84/66,067.72
  6. Step 6: Final answer
    x = 52,128.19

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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.