Home / 83,429.81-125,143.66-20,250.42

Finding the Fourth Proportional to 83,429.81, 125,143.66 and 20,250.42

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Solution

The fourth proportional to 83,429.81, 125,143.66 and 20,250.42 is: 30,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,429.81 : 125,143.66 = 20,250.42 : x
  2. Step 2: Convert to fraction form
    83,429.81/125,143.66 = 20,250.42/x
  3. Step 3: Cross multiply
    83,429.81x = 125,143.66 × 20,250.42
  4. Step 4: Simplify right side
    83,429.81x = 2,534,211,821.39
  5. Step 5: Solve for x
    x = 2,534,211,821.39/83,429.81
  6. Step 6: Final answer
    x = 30,375.37

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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.