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Finding the Fourth Proportional to 67,221.40, 100,894.41 and 33,964.84

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Solution

The fourth proportional to 67,221.40, 100,894.41 and 33,964.84 is: 50,978.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,221.40 : 100,894.41 = 33,964.84 : x
  2. Step 2: Convert to fraction form
    67,221.40/100,894.41 = 33,964.84/x
  3. Step 3: Cross multiply
    67,221.40x = 100,894.41 × 33,964.84
  4. Step 4: Simplify right side
    67,221.40x = 3,426,862,322.72
  5. Step 5: Solve for x
    x = 3,426,862,322.72/67,221.40
  6. Step 6: Final answer
    x = 50,978.74

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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.