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Finding the Fourth Proportional to 73,604.85, 110,426.41 and 21,018.44

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Solution

The fourth proportional to 73,604.85, 110,426.41 and 21,018.44 is: 31,533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,604.85 : 110,426.41 = 21,018.44 : x
  2. Step 2: Convert to fraction form
    73,604.85/110,426.41 = 21,018.44/x
  3. Step 3: Cross multiply
    73,604.85x = 110,426.41 × 21,018.44
  4. Step 4: Simplify right side
    73,604.85x = 2,320,990,613.31
  5. Step 5: Solve for x
    x = 2,320,990,613.31/73,604.85
  6. Step 6: Final answer
    x = 31,533.12

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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.