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Finding the Fourth Proportional to 89,140.60, 133,662.30 and 29,945.80

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Solution

The fourth proportional to 89,140.60, 133,662.30 and 29,945.80 is: 44,902.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,140.60 : 133,662.30 = 29,945.80 : x
  2. Step 2: Convert to fraction form
    89,140.60/133,662.30 = 29,945.80/x
  3. Step 3: Cross multiply
    89,140.60x = 133,662.30 × 29,945.80
  4. Step 4: Simplify right side
    89,140.60x = 4,002,624,503.34
  5. Step 5: Solve for x
    x = 4,002,624,503.34/89,140.60
  6. Step 6: Final answer
    x = 44,902.37

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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.