Home / 66,332.21-91,540.19-36,118.80

Finding the Fourth Proportional to 66,332.21, 91,540.19 and 36,118.80

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Solution

The fourth proportional to 66,332.21, 91,540.19 and 36,118.80 is: 49,844.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,332.21 : 91,540.19 = 36,118.80 : x
  2. Step 2: Convert to fraction form
    66,332.21/91,540.19 = 36,118.80/x
  3. Step 3: Cross multiply
    66,332.21x = 91,540.19 × 36,118.80
  4. Step 4: Simplify right side
    66,332.21x = 3,306,321,814.57
  5. Step 5: Solve for x
    x = 3,306,321,814.57/66,332.21
  6. Step 6: Final answer
    x = 49,844.89

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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.