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Finding the Fourth Proportional to 67,121.61, 92,628.16 and 36,908.88

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Solution

The fourth proportional to 67,121.61, 92,628.16 and 36,908.88 is: 50,934.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,121.61 : 92,628.16 = 36,908.88 : x
  2. Step 2: Convert to fraction form
    67,121.61/92,628.16 = 36,908.88/x
  3. Step 3: Cross multiply
    67,121.61x = 92,628.16 × 36,908.88
  4. Step 4: Simplify right side
    67,121.61x = 3,418,801,723.47
  5. Step 5: Solve for x
    x = 3,418,801,723.47/67,121.61
  6. Step 6: Final answer
    x = 50,934.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.