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Finding the Fourth Proportional to 80,005.92, 120,019.68 and 29,398.20

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Solution

The fourth proportional to 80,005.92, 120,019.68 and 29,398.20 is: 44,101.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,005.92 : 120,019.68 = 29,398.20 : x
  2. Step 2: Convert to fraction form
    80,005.92/120,019.68 = 29,398.20/x
  3. Step 3: Cross multiply
    80,005.92x = 120,019.68 × 29,398.20
  4. Step 4: Simplify right side
    80,005.92x = 3,528,362,556.58
  5. Step 5: Solve for x
    x = 3,528,362,556.58/80,005.92
  6. Step 6: Final answer
    x = 44,101.27

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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.