Home / 66,118.82-99,157.17-21,735.35

Finding the Fourth Proportional to 66,118.82, 99,157.17 and 21,735.35

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Solution

The fourth proportional to 66,118.82, 99,157.17 and 21,735.35 is: 32,596.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,118.82 : 99,157.17 = 21,735.35 : x
  2. Step 2: Convert to fraction form
    66,118.82/99,157.17 = 21,735.35/x
  3. Step 3: Cross multiply
    66,118.82x = 99,157.17 × 21,735.35
  4. Step 4: Simplify right side
    66,118.82x = 2,155,215,380.68
  5. Step 5: Solve for x
    x = 2,155,215,380.68/66,118.82
  6. Step 6: Final answer
    x = 32,596.09

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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.