Home / 66,042.20-99,059.82-21,663.11

Finding the Fourth Proportional to 66,042.20, 99,059.82 and 21,663.11

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Solution

The fourth proportional to 66,042.20, 99,059.82 and 21,663.11 is: 32,493.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,042.20 : 99,059.82 = 21,663.11 : x
  2. Step 2: Convert to fraction form
    66,042.20/99,059.82 = 21,663.11/x
  3. Step 3: Cross multiply
    66,042.20x = 99,059.82 × 21,663.11
  4. Step 4: Simplify right side
    66,042.20x = 2,145,943,777.24
  5. Step 5: Solve for x
    x = 2,145,943,777.24/66,042.20
  6. Step 6: Final answer
    x = 32,493.52

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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.