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Finding the Fourth Proportional to 49,296.80, 73,945.20 and 18,144.20

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Solution

The fourth proportional to 49,296.80, 73,945.20 and 18,144.20 is: 27,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,296.80 : 73,945.20 = 18,144.20 : x
  2. Step 2: Convert to fraction form
    49,296.80/73,945.20 = 18,144.20/x
  3. Step 3: Cross multiply
    49,296.80x = 73,945.20 × 18,144.20
  4. Step 4: Simplify right side
    49,296.80x = 1,341,676,497.84
  5. Step 5: Solve for x
    x = 1,341,676,497.84/49,296.80
  6. Step 6: Final answer
    x = 27,216.30

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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.