Home / 66,121.58-91,247.46-35,906.64

Finding the Fourth Proportional to 66,121.58, 91,247.46 and 35,906.64

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Solution

The fourth proportional to 66,121.58, 91,247.46 and 35,906.64 is: 49,550.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,121.58 : 91,247.46 = 35,906.64 : x
  2. Step 2: Convert to fraction form
    66,121.58/91,247.46 = 35,906.64/x
  3. Step 3: Cross multiply
    66,121.58x = 91,247.46 × 35,906.64
  4. Step 4: Simplify right side
    66,121.58x = 3,276,389,697.13
  5. Step 5: Solve for x
    x = 3,276,389,697.13/66,121.58
  6. Step 6: Final answer
    x = 49,550.99

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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.