Home / 80,652.36-120,979.66-30,735.17

Finding the Fourth Proportional to 80,652.36, 120,979.66 and 30,735.17

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Solution

The fourth proportional to 80,652.36, 120,979.66 and 30,735.17 is: 46,103.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,652.36 : 120,979.66 = 30,735.17 : x
  2. Step 2: Convert to fraction form
    80,652.36/120,979.66 = 30,735.17/x
  3. Step 3: Cross multiply
    80,652.36x = 120,979.66 × 30,735.17
  4. Step 4: Simplify right side
    80,652.36x = 3,718,330,416.64
  5. Step 5: Solve for x
    x = 3,718,330,416.64/80,652.36
  6. Step 6: Final answer
    x = 46,103.18

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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.