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Finding the Fourth Proportional to 72,735.13, 109,102.82 and 22,819.15

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Solution

The fourth proportional to 72,735.13, 109,102.82 and 22,819.15 is: 34,228.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,735.13 : 109,102.82 = 22,819.15 : x
  2. Step 2: Convert to fraction form
    72,735.13/109,102.82 = 22,819.15/x
  3. Step 3: Cross multiply
    72,735.13x = 109,102.82 × 22,819.15
  4. Step 4: Simplify right side
    72,735.13x = 2,489,633,615.00
  5. Step 5: Solve for x
    x = 2,489,633,615.00/72,735.13
  6. Step 6: Final answer
    x = 34,228.76

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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.