Home / 66,375.40-91,610.58-38,099.56

Finding the Fourth Proportional to 66,375.40, 91,610.58 and 38,099.56

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Solution

The fourth proportional to 66,375.40, 91,610.58 and 38,099.56 is: 52,584.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,375.40 : 91,610.58 = 38,099.56 : x
  2. Step 2: Convert to fraction form
    66,375.40/91,610.58 = 38,099.56/x
  3. Step 3: Cross multiply
    66,375.40x = 91,610.58 × 38,099.56
  4. Step 4: Simplify right side
    66,375.40x = 3,490,322,789.34
  5. Step 5: Solve for x
    x = 3,490,322,789.34/66,375.40
  6. Step 6: Final answer
    x = 52,584.58

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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.