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Finding the Fourth Proportional to 72,799.00, 109,199.10 and 20,212.58

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Solution

The fourth proportional to 72,799.00, 109,199.10 and 20,212.58 is: 30,319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,799.00 : 109,199.10 = 20,212.58 : x
  2. Step 2: Convert to fraction form
    72,799.00/109,199.10 = 20,212.58/x
  3. Step 3: Cross multiply
    72,799.00x = 109,199.10 × 20,212.58
  4. Step 4: Simplify right side
    72,799.00x = 2,207,195,544.68
  5. Step 5: Solve for x
    x = 2,207,195,544.68/72,799.00
  6. Step 6: Final answer
    x = 30,319.04

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1.5x scale

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.