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Finding the Fourth Proportional to 79,993.92, 120,003.68 and 40,535.04

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Solution

The fourth proportional to 79,993.92, 120,003.68 and 40,535.04 is: 60,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,993.92 : 120,003.68 = 40,535.04 : x
  2. Step 2: Convert to fraction form
    79,993.92/120,003.68 = 40,535.04/x
  3. Step 3: Cross multiply
    79,993.92x = 120,003.68 × 40,535.04
  4. Step 4: Simplify right side
    79,993.92x = 4,864,353,968.95
  5. Step 5: Solve for x
    x = 4,864,353,968.95/79,993.92
  6. Step 6: Final answer
    x = 60,809.05

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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.