Home / 83,786.58-125,678.79-20,607.24

Finding the Fourth Proportional to 83,786.58, 125,678.79 and 20,607.24

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Solution

The fourth proportional to 83,786.58, 125,678.79 and 20,607.24 is: 30,910.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,786.58 : 125,678.79 = 20,607.24 : x
  2. Step 2: Convert to fraction form
    83,786.58/125,678.79 = 20,607.24/x
  3. Step 3: Cross multiply
    83,786.58x = 125,678.79 × 20,607.24
  4. Step 4: Simplify right side
    83,786.58x = 2,589,892,988.44
  5. Step 5: Solve for x
    x = 2,589,892,988.44/83,786.58
  6. Step 6: Final answer
    x = 30,910.59

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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.