Home / 83,499.58-125,249.62-20,319.71

Finding the Fourth Proportional to 83,499.58, 125,249.62 and 20,319.71

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Solution

The fourth proportional to 83,499.58, 125,249.62 and 20,319.71 is: 30,479.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,499.58 : 125,249.62 = 20,319.71 : x
  2. Step 2: Convert to fraction form
    83,499.58/125,249.62 = 20,319.71/x
  3. Step 3: Cross multiply
    83,499.58x = 125,249.62 × 20,319.71
  4. Step 4: Simplify right side
    83,499.58x = 2,545,035,956.01
  5. Step 5: Solve for x
    x = 2,545,035,956.01/83,499.58
  6. Step 6: Final answer
    x = 30,479.63

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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.