Home / 81,024.33-121,694.05-66,042.44

Finding the Fourth Proportional to 81,024.33, 121,694.05 and 66,042.44

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Solution

The fourth proportional to 81,024.33, 121,694.05 and 66,042.44 is: 99,192.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,024.33 : 121,694.05 = 66,042.44 : x
  2. Step 2: Convert to fraction form
    81,024.33/121,694.05 = 66,042.44/x
  3. Step 3: Cross multiply
    81,024.33x = 121,694.05 × 66,042.44
  4. Step 4: Simplify right side
    81,024.33x = 8,036,971,554.43
  5. Step 5: Solve for x
    x = 8,036,971,554.43/81,024.33
  6. Step 6: Final answer
    x = 99,192.07

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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.