Home / 51,081.44-76,605.62-18,618.98

Finding the Fourth Proportional to 51,081.44, 76,605.62 and 18,618.98

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Solution

The fourth proportional to 51,081.44, 76,605.62 and 18,618.98 is: 27,922.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,081.44 : 76,605.62 = 18,618.98 : x
  2. Step 2: Convert to fraction form
    51,081.44/76,605.62 = 18,618.98/x
  3. Step 3: Cross multiply
    51,081.44x = 76,605.62 × 18,618.98
  4. Step 4: Simplify right side
    51,081.44x = 1,426,318,030.54
  5. Step 5: Solve for x
    x = 1,426,318,030.54/51,081.44
  6. Step 6: Final answer
    x = 27,922.43

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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.