Home / 73,013.06-109,520.46-28,660.70

Finding the Fourth Proportional to 73,013.06, 109,520.46 and 28,660.70

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Solution

The fourth proportional to 73,013.06, 109,520.46 and 28,660.70 is: 42,991.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,013.06 : 109,520.46 = 28,660.70 : x
  2. Step 2: Convert to fraction form
    73,013.06/109,520.46 = 28,660.70/x
  3. Step 3: Cross multiply
    73,013.06x = 109,520.46 × 28,660.70
  4. Step 4: Simplify right side
    73,013.06x = 3,138,933,047.92
  5. Step 5: Solve for x
    x = 3,138,933,047.92/73,013.06
  6. Step 6: Final answer
    x = 42,991.39

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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.