Home / 73,213.35-109,819.49-20,621.67

Finding the Fourth Proportional to 73,213.35, 109,819.49 and 20,621.67

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Solution

The fourth proportional to 73,213.35, 109,819.49 and 20,621.67 is: 30,932.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,213.35 : 109,819.49 = 20,621.67 : x
  2. Step 2: Convert to fraction form
    73,213.35/109,819.49 = 20,621.67/x
  3. Step 3: Cross multiply
    73,213.35x = 109,819.49 × 20,621.67
  4. Step 4: Simplify right side
    73,213.35x = 2,264,661,179.24
  5. Step 5: Solve for x
    x = 2,264,661,179.24/73,213.35
  6. Step 6: Final answer
    x = 30,932.35

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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.