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Finding the Fourth Proportional to 89,872.44, 134,891.46 and 45,530.10

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Solution

The fourth proportional to 89,872.44, 134,891.46 and 45,530.10 is: 68,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,872.44 : 134,891.46 = 45,530.10 : x
  2. Step 2: Convert to fraction form
    89,872.44/134,891.46 = 45,530.10/x
  3. Step 3: Cross multiply
    89,872.44x = 134,891.46 × 45,530.10
  4. Step 4: Simplify right side
    89,872.44x = 6,141,621,662.95
  5. Step 5: Solve for x
    x = 6,141,621,662.95/89,872.44
  6. Step 6: Final answer
    x = 68,337.10

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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.