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Finding the Fourth Proportional to 66,610.76, 91,921.68 and 36,395.33

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Solution

The fourth proportional to 66,610.76, 91,921.68 and 36,395.33 is: 50,224.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,610.76 : 91,921.68 = 36,395.33 : x
  2. Step 2: Convert to fraction form
    66,610.76/91,921.68 = 36,395.33/x
  3. Step 3: Cross multiply
    66,610.76x = 91,921.68 × 36,395.33
  4. Step 4: Simplify right side
    66,610.76x = 3,345,519,418.15
  5. Step 5: Solve for x
    x = 3,345,519,418.15/66,610.76
  6. Step 6: Final answer
    x = 50,224.91

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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.