Home / 66,943.35-100,415.03-27,480.15

Finding the Fourth Proportional to 66,943.35, 100,415.03 and 27,480.15

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Solution

The fourth proportional to 66,943.35, 100,415.03 and 27,480.15 is: 41,220.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,943.35 : 100,415.03 = 27,480.15 : x
  2. Step 2: Convert to fraction form
    66,943.35/100,415.03 = 27,480.15/x
  3. Step 3: Cross multiply
    66,943.35x = 100,415.03 × 27,480.15
  4. Step 4: Simplify right side
    66,943.35x = 2,759,419,949.25
  5. Step 5: Solve for x
    x = 2,759,419,949.25/66,943.35
  6. Step 6: Final answer
    x = 41,220.23

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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.