Home / 80,705.94-121,057.70-36,301.34

Finding the Fourth Proportional to 80,705.94, 121,057.70 and 36,301.34

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Solution

The fourth proportional to 80,705.94, 121,057.70 and 36,301.34 is: 54,451.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,705.94 : 121,057.70 = 36,301.34 : x
  2. Step 2: Convert to fraction form
    80,705.94/121,057.70 = 36,301.34/x
  3. Step 3: Cross multiply
    80,705.94x = 121,057.70 × 36,301.34
  4. Step 4: Simplify right side
    80,705.94x = 4,394,556,727.32
  5. Step 5: Solve for x
    x = 4,394,556,727.32/80,705.94
  6. Step 6: Final answer
    x = 54,451.47

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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.