Home / 83,630.05-125,412.39-30,309.37

Finding the Fourth Proportional to 83,630.05, 125,412.39 and 30,309.37

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Solution

The fourth proportional to 83,630.05, 125,412.39 and 30,309.37 is: 45,452.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,630.05 : 125,412.39 = 30,309.37 : x
  2. Step 2: Convert to fraction form
    83,630.05/125,412.39 = 30,309.37/x
  3. Step 3: Cross multiply
    83,630.05x = 125,412.39 × 30,309.37
  4. Step 4: Simplify right side
    83,630.05x = 3,801,170,217.56
  5. Step 5: Solve for x
    x = 3,801,170,217.56/83,630.05
  6. Step 6: Final answer
    x = 45,452.21

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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.