Home / 75,039.21-112,558.82-30,665.97

Finding the Fourth Proportional to 75,039.21, 112,558.82 and 30,665.97

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Solution

The fourth proportional to 75,039.21, 112,558.82 and 30,665.97 is: 45,998.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,039.21 : 112,558.82 = 30,665.97 : x
  2. Step 2: Convert to fraction form
    75,039.21/112,558.82 = 30,665.97/x
  3. Step 3: Cross multiply
    75,039.21x = 112,558.82 × 30,665.97
  4. Step 4: Simplify right side
    75,039.21x = 3,451,725,244.03
  5. Step 5: Solve for x
    x = 3,451,725,244.03/75,039.21
  6. Step 6: Final answer
    x = 45,998.96

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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.