Home / 80,181.25-120,269.39-38,091.62

Finding the Fourth Proportional to 80,181.25, 120,269.39 and 38,091.62

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Solution

The fourth proportional to 80,181.25, 120,269.39 and 38,091.62 is: 57,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,181.25 : 120,269.39 = 38,091.62 : x
  2. Step 2: Convert to fraction form
    80,181.25/120,269.39 = 38,091.62/x
  3. Step 3: Cross multiply
    80,181.25x = 120,269.39 × 38,091.62
  4. Step 4: Simplify right side
    80,181.25x = 4,581,255,901.51
  5. Step 5: Solve for x
    x = 4,581,255,901.51/80,181.25
  6. Step 6: Final answer
    x = 57,136.25

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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.