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Finding the Fourth Proportional to 33,109.10, 49,663.65 and 8,485.10

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Solution

The fourth proportional to 33,109.10, 49,663.65 and 8,485.10 is: 12,727.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,109.10 : 49,663.65 = 8,485.10 : x
  2. Step 2: Convert to fraction form
    33,109.10/49,663.65 = 8,485.10/x
  3. Step 3: Cross multiply
    33,109.10x = 49,663.65 × 8,485.10
  4. Step 4: Simplify right side
    33,109.10x = 421,401,036.62
  5. Step 5: Solve for x
    x = 421,401,036.62/33,109.10
  6. Step 6: Final answer
    x = 12,727.65

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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.