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Finding the Fourth Proportional to 101,591.28, 152,662.86 and 54,239.49

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Solution

The fourth proportional to 101,591.28, 152,662.86 and 54,239.49 is: 81,506.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,591.28 : 152,662.86 = 54,239.49 : x
  2. Step 2: Convert to fraction form
    101,591.28/152,662.86 = 54,239.49/x
  3. Step 3: Cross multiply
    101,591.28x = 152,662.86 × 54,239.49
  4. Step 4: Simplify right side
    101,591.28x = 8,280,355,668.34
  5. Step 5: Solve for x
    x = 8,280,355,668.34/101,591.28
  6. Step 6: Final answer
    x = 81,506.56

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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.