Home / 51,956.47-77,928.22-20,791.99

Finding the Fourth Proportional to 51,956.47, 77,928.22 and 20,791.99

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Solution

The fourth proportional to 51,956.47, 77,928.22 and 20,791.99 is: 31,185.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,956.47 : 77,928.22 = 20,791.99 : x
  2. Step 2: Convert to fraction form
    51,956.47/77,928.22 = 20,791.99/x
  3. Step 3: Cross multiply
    51,956.47x = 77,928.22 × 20,791.99
  4. Step 4: Simplify right side
    51,956.47x = 1,620,282,770.96
  5. Step 5: Solve for x
    x = 1,620,282,770.96/51,956.47
  6. Step 6: Final answer
    x = 31,185.39

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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.