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Finding the Fourth Proportional to 89,784, 134,680.10 and 33,609.60

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Solution

The fourth proportional to 89,784, 134,680.10 and 33,609.60 is: 50,415.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,784 : 134,680.10 = 33,609.60 : x
  2. Step 2: Convert to fraction form
    89,784/134,680.10 = 33,609.60/x
  3. Step 3: Cross multiply
    89,784x = 134,680.10 × 33,609.60
  4. Step 4: Simplify right side
    89,784x = 4,526,544,288.96
  5. Step 5: Solve for x
    x = 4,526,544,288.96/89,784
  6. Step 6: Final answer
    x = 50,415.93

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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.