Home / 83,403.21-125,128.13-33,518.31

Finding the Fourth Proportional to 83,403.21, 125,128.13 and 33,518.31

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Solution

The fourth proportional to 83,403.21, 125,128.13 and 33,518.31 is: 50,286.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,403.21 : 125,128.13 = 33,518.31 : x
  2. Step 2: Convert to fraction form
    83,403.21/125,128.13 = 33,518.31/x
  3. Step 3: Cross multiply
    83,403.21x = 125,128.13 × 33,518.31
  4. Step 4: Simplify right side
    83,403.21x = 4,194,083,283.47
  5. Step 5: Solve for x
    x = 4,194,083,283.47/83,403.21
  6. Step 6: Final answer
    x = 50,286.83

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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.