Home / 66,072.60-91,180.26-37,778.94

Finding the Fourth Proportional to 66,072.60, 91,180.26 and 37,778.94

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Solution

The fourth proportional to 66,072.60, 91,180.26 and 37,778.94 is: 52,134.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,072.60 : 91,180.26 = 37,778.94 : x
  2. Step 2: Convert to fraction form
    66,072.60/91,180.26 = 37,778.94/x
  3. Step 3: Cross multiply
    66,072.60x = 91,180.26 × 37,778.94
  4. Step 4: Simplify right side
    66,072.60x = 3,444,693,571.72
  5. Step 5: Solve for x
    x = 3,444,693,571.72/66,072.60
  6. Step 6: Final answer
    x = 52,134.98

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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.