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Finding the Fourth Proportional to 73,400.40, 110,100.60 and 72,622.80

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Solution

The fourth proportional to 73,400.40, 110,100.60 and 72,622.80 is: 108,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,400.40 : 110,100.60 = 72,622.80 : x
  2. Step 2: Convert to fraction form
    73,400.40/110,100.60 = 72,622.80/x
  3. Step 3: Cross multiply
    73,400.40x = 110,100.60 × 72,622.80
  4. Step 4: Simplify right side
    73,400.40x = 7,995,813,853.68
  5. Step 5: Solve for x
    x = 7,995,813,853.68/73,400.40
  6. Step 6: Final answer
    x = 108,934.20

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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.