Home / 66,028.20-99,054.30-21,642.60

Finding the Fourth Proportional to 66,028.20, 99,054.30 and 21,642.60

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Solution

The fourth proportional to 66,028.20, 99,054.30 and 21,642.60 is: 32,467.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,028.20 : 99,054.30 = 21,642.60 : x
  2. Step 2: Convert to fraction form
    66,028.20/99,054.30 = 21,642.60/x
  3. Step 3: Cross multiply
    66,028.20x = 99,054.30 × 21,642.60
  4. Step 4: Simplify right side
    66,028.20x = 2,143,792,593.18
  5. Step 5: Solve for x
    x = 2,143,792,593.18/66,028.20
  6. Step 6: Final answer
    x = 32,467.83

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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.