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Finding the Fourth Proportional to 89,137.53, 133,616.19 and 55,880.91

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Solution

The fourth proportional to 89,137.53, 133,616.19 and 55,880.91 is: 83,764.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,137.53 : 133,616.19 = 55,880.91 : x
  2. Step 2: Convert to fraction form
    89,137.53/133,616.19 = 55,880.91/x
  3. Step 3: Cross multiply
    89,137.53x = 133,616.19 × 55,880.91
  4. Step 4: Simplify right side
    89,137.53x = 7,466,594,287.93
  5. Step 5: Solve for x
    x = 7,466,594,287.93/89,137.53
  6. Step 6: Final answer
    x = 83,764.88

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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.