Home / 66,384.12-91,612.28-36,171.84

Finding the Fourth Proportional to 66,384.12, 91,612.28 and 36,171.84

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Solution

The fourth proportional to 66,384.12, 91,612.28 and 36,171.84 is: 49,918.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,384.12 : 91,612.28 = 36,171.84 : x
  2. Step 2: Convert to fraction form
    66,384.12/91,612.28 = 36,171.84/x
  3. Step 3: Cross multiply
    66,384.12x = 91,612.28 × 36,171.84
  4. Step 4: Simplify right side
    66,384.12x = 3,313,784,734.20
  5. Step 5: Solve for x
    x = 3,313,784,734.20/66,384.12
  6. Step 6: Final answer
    x = 49,918.33

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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.