Home / 91,067.76-125,681.80-55,266.88

Finding the Fourth Proportional to 91,067.76, 125,681.80 and 55,266.88

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Solution

The fourth proportional to 91,067.76, 125,681.80 and 55,266.88 is: 76,273.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,067.76 : 125,681.80 = 55,266.88 : x
  2. Step 2: Convert to fraction form
    91,067.76/125,681.80 = 55,266.88/x
  3. Step 3: Cross multiply
    91,067.76x = 125,681.80 × 55,266.88
  4. Step 4: Simplify right side
    91,067.76x = 6,946,040,958.78
  5. Step 5: Solve for x
    x = 6,946,040,958.78/91,067.76
  6. Step 6: Final answer
    x = 76,273.33

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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.