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Finding the Fourth Proportional to 66,883.87, 92,267.94 and 40,020.97

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Solution

The fourth proportional to 66,883.87, 92,267.94 and 40,020.97 is: 55,209.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,883.87 : 92,267.94 = 40,020.97 : x
  2. Step 2: Convert to fraction form
    66,883.87/92,267.94 = 40,020.97/x
  3. Step 3: Cross multiply
    66,883.87x = 92,267.94 × 40,020.97
  4. Step 4: Simplify right side
    66,883.87x = 3,692,652,458.70
  5. Step 5: Solve for x
    x = 3,692,652,458.70/66,883.87
  6. Step 6: Final answer
    x = 55,209.91

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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.