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Finding the Fourth Proportional to 86,884, 119,900.04 and 49,157.44

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Solution

The fourth proportional to 86,884, 119,900.04 and 49,157.44 is: 67,837.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,884 : 119,900.04 = 49,157.44 : x
  2. Step 2: Convert to fraction form
    86,884/119,900.04 = 49,157.44/x
  3. Step 3: Cross multiply
    86,884x = 119,900.04 × 49,157.44
  4. Step 4: Simplify right side
    86,884x = 5,893,979,022.30
  5. Step 5: Solve for x
    x = 5,893,979,022.30/86,884
  6. Step 6: Final answer
    x = 67,837.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.