Home / 81,593.33-122,402.34-28,990.31

Finding the Fourth Proportional to 81,593.33, 122,402.34 and 28,990.31

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Solution

The fourth proportional to 81,593.33, 122,402.34 and 28,990.31 is: 43,489.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,593.33 : 122,402.34 = 28,990.31 : x
  2. Step 2: Convert to fraction form
    81,593.33/122,402.34 = 28,990.31/x
  3. Step 3: Cross multiply
    81,593.33x = 122,402.34 × 28,990.31
  4. Step 4: Simplify right side
    81,593.33x = 3,548,481,169.31
  5. Step 5: Solve for x
    x = 3,548,481,169.31/81,593.33
  6. Step 6: Final answer
    x = 43,489.85

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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.