Home / 66,122.01-99,161.94-21,738.54

Finding the Fourth Proportional to 66,122.01, 99,161.94 and 21,738.54

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Solution

The fourth proportional to 66,122.01, 99,161.94 and 21,738.54 is: 32,600.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,122.01 : 99,161.94 = 21,738.54 : x
  2. Step 2: Convert to fraction form
    66,122.01/99,161.94 = 21,738.54/x
  3. Step 3: Cross multiply
    66,122.01x = 99,161.94 × 21,738.54
  4. Step 4: Simplify right side
    66,122.01x = 2,155,635,799.17
  5. Step 5: Solve for x
    x = 2,155,635,799.17/66,122.01
  6. Step 6: Final answer
    x = 32,600.88

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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.