Home / 56,198.68-84,310.36-21,138.34

Finding the Fourth Proportional to 56,198.68, 84,310.36 and 21,138.34

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Solution

The fourth proportional to 56,198.68, 84,310.36 and 21,138.34 is: 31,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,198.68 : 84,310.36 = 21,138.34 : x
  2. Step 2: Convert to fraction form
    56,198.68/84,310.36 = 21,138.34/x
  3. Step 3: Cross multiply
    56,198.68x = 84,310.36 × 21,138.34
  4. Step 4: Simplify right side
    56,198.68x = 1,782,181,055.20
  5. Step 5: Solve for x
    x = 1,782,181,055.20/56,198.68
  6. Step 6: Final answer
    x = 31,712.15

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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.