Home / 66,428.22-99,620.66-22,043.06

Finding the Fourth Proportional to 66,428.22, 99,620.66 and 22,043.06

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Solution

The fourth proportional to 66,428.22, 99,620.66 and 22,043.06 is: 33,057.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428.22 : 99,620.66 = 22,043.06 : x
  2. Step 2: Convert to fraction form
    66,428.22/99,620.66 = 22,043.06/x
  3. Step 3: Cross multiply
    66,428.22x = 99,620.66 × 22,043.06
  4. Step 4: Simplify right side
    66,428.22x = 2,195,943,577.30
  5. Step 5: Solve for x
    x = 2,195,943,577.30/66,428.22
  6. Step 6: Final answer
    x = 33,057.39

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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.