Home / 66,914.88-100,356-22,530.08

Finding the Fourth Proportional to 66,914.88, 100,356 and 22,530.08

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Solution

The fourth proportional to 66,914.88, 100,356 and 22,530.08 is: 33,789.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,914.88 : 100,356 = 22,530.08 : x
  2. Step 2: Convert to fraction form
    66,914.88/100,356 = 22,530.08/x
  3. Step 3: Cross multiply
    66,914.88x = 100,356 × 22,530.08
  4. Step 4: Simplify right side
    66,914.88x = 2,261,028,708.48
  5. Step 5: Solve for x
    x = 2,261,028,708.48/66,914.88
  6. Step 6: Final answer
    x = 33,789.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.