Home / 51,974.76-77,942.79-18,685.74

Finding the Fourth Proportional to 51,974.76, 77,942.79 and 18,685.74

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Solution

The fourth proportional to 51,974.76, 77,942.79 and 18,685.74 is: 28,021.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,974.76 : 77,942.79 = 18,685.74 : x
  2. Step 2: Convert to fraction form
    51,974.76/77,942.79 = 18,685.74/x
  3. Step 3: Cross multiply
    51,974.76x = 77,942.79 × 18,685.74
  4. Step 4: Simplify right side
    51,974.76x = 1,456,418,708.81
  5. Step 5: Solve for x
    x = 1,456,418,708.81/51,974.76
  6. Step 6: Final answer
    x = 28,021.65

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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.