Home / 66,211.56-91,372.32-35,997.21

Finding the Fourth Proportional to 66,211.56, 91,372.32 and 35,997.21

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Solution

The fourth proportional to 66,211.56, 91,372.32 and 35,997.21 is: 49,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,211.56 : 91,372.32 = 35,997.21 : x
  2. Step 2: Convert to fraction form
    66,211.56/91,372.32 = 35,997.21/x
  3. Step 3: Cross multiply
    66,211.56x = 91,372.32 × 35,997.21
  4. Step 4: Simplify right side
    66,211.56x = 3,289,148,591.23
  5. Step 5: Solve for x
    x = 3,289,148,591.23/66,211.56
  6. Step 6: Final answer
    x = 49,676.35

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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.