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Finding the Fourth Proportional to 66,708.80, 100,014.60 and 27,245.60

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Solution

The fourth proportional to 66,708.80, 100,014.60 and 27,245.60 is: 40,848.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,708.80 : 100,014.60 = 27,245.60 : x
  2. Step 2: Convert to fraction form
    66,708.80/100,014.60 = 27,245.60/x
  3. Step 3: Cross multiply
    66,708.80x = 100,014.60 × 27,245.60
  4. Step 4: Simplify right side
    66,708.80x = 2,724,957,785.76
  5. Step 5: Solve for x
    x = 2,724,957,785.76/66,708.80
  6. Step 6: Final answer
    x = 40,848.55

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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.