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Finding the Fourth Proportional to 72,799.44, 109,187.01 and 20,214.24

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Solution

The fourth proportional to 72,799.44, 109,187.01 and 20,214.24 is: 30,317.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,799.44 : 109,187.01 = 20,214.24 : x
  2. Step 2: Convert to fraction form
    72,799.44/109,187.01 = 20,214.24/x
  3. Step 3: Cross multiply
    72,799.44x = 109,187.01 × 20,214.24
  4. Step 4: Simplify right side
    72,799.44x = 2,207,132,425.02
  5. Step 5: Solve for x
    x = 2,207,132,425.02/72,799.44
  6. Step 6: Final answer
    x = 30,317.99

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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.