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Finding the Fourth Proportional to 89,221.70, 133,832.46 and 26,892.20

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Solution

The fourth proportional to 89,221.70, 133,832.46 and 26,892.20 is: 40,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,221.70 : 133,832.46 = 26,892.20 : x
  2. Step 2: Convert to fraction form
    89,221.70/133,832.46 = 26,892.20/x
  3. Step 3: Cross multiply
    89,221.70x = 133,832.46 × 26,892.20
  4. Step 4: Simplify right side
    89,221.70x = 3,599,049,280.81
  5. Step 5: Solve for x
    x = 3,599,049,280.81/89,221.70
  6. Step 6: Final answer
    x = 40,338.27

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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.