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Finding the Fourth Proportional to 73,939.56, 110,893 and 21,337.60

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Solution

The fourth proportional to 73,939.56, 110,893 and 21,337.60 is: 32,001.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,939.56 : 110,893 = 21,337.60 : x
  2. Step 2: Convert to fraction form
    73,939.56/110,893 = 21,337.60/x
  3. Step 3: Cross multiply
    73,939.56x = 110,893 × 21,337.60
  4. Step 4: Simplify right side
    73,939.56x = 2,366,190,476.80
  5. Step 5: Solve for x
    x = 2,366,190,476.80/73,939.56
  6. Step 6: Final answer
    x = 32,001.68

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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.