Home / 51,977.92-77,992.80-18,705.43

Finding the Fourth Proportional to 51,977.92, 77,992.80 and 18,705.43

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Solution

The fourth proportional to 51,977.92, 77,992.80 and 18,705.43 is: 28,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,977.92 : 77,992.80 = 18,705.43 : x
  2. Step 2: Convert to fraction form
    51,977.92/77,992.80 = 18,705.43/x
  3. Step 3: Cross multiply
    51,977.92x = 77,992.80 × 18,705.43
  4. Step 4: Simplify right side
    51,977.92x = 1,458,888,860.90
  5. Step 5: Solve for x
    x = 1,458,888,860.90/51,977.92
  6. Step 6: Final answer
    x = 28,067.47

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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.