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Finding the Fourth Proportional to 70,000.63, 104,979.38 and 20,067.37

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Solution

The fourth proportional to 70,000.63, 104,979.38 and 20,067.37 is: 30,094.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,000.63 : 104,979.38 = 20,067.37 : x
  2. Step 2: Convert to fraction form
    70,000.63/104,979.38 = 20,067.37/x
  3. Step 3: Cross multiply
    70,000.63x = 104,979.38 × 20,067.37
  4. Step 4: Simplify right side
    70,000.63x = 2,106,659,698.05
  5. Step 5: Solve for x
    x = 2,106,659,698.05/70,000.63
  6. Step 6: Final answer
    x = 30,094.87

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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.