Home / 52,198.86-78,297.90-12,755.64

Finding the Fourth Proportional to 52,198.86, 78,297.90 and 12,755.64

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Solution

The fourth proportional to 52,198.86, 78,297.90 and 12,755.64 is: 19,133.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,198.86 : 78,297.90 = 12,755.64 : x
  2. Step 2: Convert to fraction form
    52,198.86/78,297.90 = 12,755.64/x
  3. Step 3: Cross multiply
    52,198.86x = 78,297.90 × 12,755.64
  4. Step 4: Simplify right side
    52,198.86x = 998,739,825.16
  5. Step 5: Solve for x
    x = 998,739,825.16/52,198.86
  6. Step 6: Final answer
    x = 19,133.36

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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.