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Finding the Fourth Proportional to 91,745.94, 126,555.48 and 57,700.56

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Solution

The fourth proportional to 91,745.94, 126,555.48 and 57,700.56 is: 79,592.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,745.94 : 126,555.48 = 57,700.56 : x
  2. Step 2: Convert to fraction form
    91,745.94/126,555.48 = 57,700.56/x
  3. Step 3: Cross multiply
    91,745.94x = 126,555.48 × 57,700.56
  4. Step 4: Simplify right side
    91,745.94x = 7,302,322,067.07
  5. Step 5: Solve for x
    x = 7,302,322,067.07/91,745.94
  6. Step 6: Final answer
    x = 79,592.86

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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.