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Finding the Fourth Proportional to 66,693.53, 100,003.36 and 27,278.32

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Solution

The fourth proportional to 66,693.53, 100,003.36 and 27,278.32 is: 40,902.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,693.53 : 100,003.36 = 27,278.32 : x
  2. Step 2: Convert to fraction form
    66,693.53/100,003.36 = 27,278.32/x
  3. Step 3: Cross multiply
    66,693.53x = 100,003.36 × 27,278.32
  4. Step 4: Simplify right side
    66,693.53x = 2,727,923,575.60
  5. Step 5: Solve for x
    x = 2,727,923,575.60/66,693.53
  6. Step 6: Final answer
    x = 40,902.37

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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.