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Finding the Fourth Proportional to 70,110.54, 105,165.81 and 37,270.86

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Solution

The fourth proportional to 70,110.54, 105,165.81 and 37,270.86 is: 55,906.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,110.54 : 105,165.81 = 37,270.86 : x
  2. Step 2: Convert to fraction form
    70,110.54/105,165.81 = 37,270.86/x
  3. Step 3: Cross multiply
    70,110.54x = 105,165.81 × 37,270.86
  4. Step 4: Simplify right side
    70,110.54x = 3,919,620,181.30
  5. Step 5: Solve for x
    x = 3,919,620,181.30/70,110.54
  6. Step 6: Final answer
    x = 55,906.29

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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.