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Finding the Fourth Proportional to 66,702.56, 100,006.65 and 33,398.73

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Solution

The fourth proportional to 66,702.56, 100,006.65 and 33,398.73 is: 50,074.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,702.56 : 100,006.65 = 33,398.73 : x
  2. Step 2: Convert to fraction form
    66,702.56/100,006.65 = 33,398.73/x
  3. Step 3: Cross multiply
    66,702.56x = 100,006.65 × 33,398.73
  4. Step 4: Simplify right side
    66,702.56x = 3,340,095,101.55
  5. Step 5: Solve for x
    x = 3,340,095,101.55/66,702.56
  6. Step 6: Final answer
    x = 50,074.47

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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.