Home / 66,415.44-91,651.68-36,201.60

Finding the Fourth Proportional to 66,415.44, 91,651.68 and 36,201.60

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Solution

The fourth proportional to 66,415.44, 91,651.68 and 36,201.60 is: 49,957.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,415.44 : 91,651.68 = 36,201.60 : x
  2. Step 2: Convert to fraction form
    66,415.44/91,651.68 = 36,201.60/x
  3. Step 3: Cross multiply
    66,415.44x = 91,651.68 × 36,201.60
  4. Step 4: Simplify right side
    66,415.44x = 3,317,937,458.69
  5. Step 5: Solve for x
    x = 3,317,937,458.69/66,415.44
  6. Step 6: Final answer
    x = 49,957.32

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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.