Home / 66,620.28-91,936.98-36,406.20

Finding the Fourth Proportional to 66,620.28, 91,936.98 and 36,406.20

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Solution

The fourth proportional to 66,620.28, 91,936.98 and 36,406.20 is: 50,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,620.28 : 91,936.98 = 36,406.20 : x
  2. Step 2: Convert to fraction form
    66,620.28/91,936.98 = 36,406.20/x
  3. Step 3: Cross multiply
    66,620.28x = 91,936.98 × 36,406.20
  4. Step 4: Simplify right side
    66,620.28x = 3,347,076,081.28
  5. Step 5: Solve for x
    x = 3,347,076,081.28/66,620.28
  6. Step 6: Final answer
    x = 50,241.10

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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.