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Finding the Fourth Proportional to 97,997.76, 135,234.48 and 57,169.71

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Solution

The fourth proportional to 97,997.76, 135,234.48 and 57,169.71 is: 78,892.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,997.76 : 135,234.48 = 57,169.71 : x
  2. Step 2: Convert to fraction form
    97,997.76/135,234.48 = 57,169.71/x
  3. Step 3: Cross multiply
    97,997.76x = 135,234.48 × 57,169.71
  4. Step 4: Simplify right side
    97,997.76x = 7,731,316,003.60
  5. Step 5: Solve for x
    x = 7,731,316,003.60/97,997.76
  6. Step 6: Final answer
    x = 78,892.78

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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.