Home / 66,621.78-91,936.92-36,406.47

Finding the Fourth Proportional to 66,621.78, 91,936.92 and 36,406.47

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Solution

The fourth proportional to 66,621.78, 91,936.92 and 36,406.47 is: 50,240.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,621.78 : 91,936.92 = 36,406.47 : x
  2. Step 2: Convert to fraction form
    66,621.78/91,936.92 = 36,406.47/x
  3. Step 3: Cross multiply
    66,621.78x = 91,936.92 × 36,406.47
  4. Step 4: Simplify right side
    66,621.78x = 3,347,098,719.87
  5. Step 5: Solve for x
    x = 3,347,098,719.87/66,621.78
  6. Step 6: Final answer
    x = 50,240.31

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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.