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Finding the Fourth Proportional to 89,615.73, 134,424 and 36,308.73

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Solution

The fourth proportional to 89,615.73, 134,424 and 36,308.73 is: 54,463.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,615.73 : 134,424 = 36,308.73 : x
  2. Step 2: Convert to fraction form
    89,615.73/134,424 = 36,308.73/x
  3. Step 3: Cross multiply
    89,615.73x = 134,424 × 36,308.73
  4. Step 4: Simplify right side
    89,615.73x = 4,880,764,721.52
  5. Step 5: Solve for x
    x = 4,880,764,721.52/89,615.73
  6. Step 6: Final answer
    x = 54,463.26

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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.