Home / 66,788.12-100,195.54-21,812.46

Finding the Fourth Proportional to 66,788.12, 100,195.54 and 21,812.46

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Solution

The fourth proportional to 66,788.12, 100,195.54 and 21,812.46 is: 32,723.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,788.12 : 100,195.54 = 21,812.46 : x
  2. Step 2: Convert to fraction form
    66,788.12/100,195.54 = 21,812.46/x
  3. Step 3: Cross multiply
    66,788.12x = 100,195.54 × 21,812.46
  4. Step 4: Simplify right side
    66,788.12x = 2,185,511,208.43
  5. Step 5: Solve for x
    x = 2,185,511,208.43/66,788.12
  6. Step 6: Final answer
    x = 32,723.05

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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.