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Finding the Fourth Proportional to 66,894.35, 100,278.72 and 22,490.06

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Solution

The fourth proportional to 66,894.35, 100,278.72 and 22,490.06 is: 33,713.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,894.35 : 100,278.72 = 22,490.06 : x
  2. Step 2: Convert to fraction form
    66,894.35/100,278.72 = 22,490.06/x
  3. Step 3: Cross multiply
    66,894.35x = 100,278.72 × 22,490.06
  4. Step 4: Simplify right side
    66,894.35x = 2,255,273,928.13
  5. Step 5: Solve for x
    x = 2,255,273,928.13/66,894.35
  6. Step 6: Final answer
    x = 33,713.97

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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.