Home / 51,722.34-77,583.78-20,557.68

Finding the Fourth Proportional to 51,722.34, 77,583.78 and 20,557.68

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Solution

The fourth proportional to 51,722.34, 77,583.78 and 20,557.68 is: 30,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,722.34 : 77,583.78 = 20,557.68 : x
  2. Step 2: Convert to fraction form
    51,722.34/77,583.78 = 20,557.68/x
  3. Step 3: Cross multiply
    51,722.34x = 77,583.78 × 20,557.68
  4. Step 4: Simplify right side
    51,722.34x = 1,594,942,522.43
  5. Step 5: Solve for x
    x = 1,594,942,522.43/51,722.34
  6. Step 6: Final answer
    x = 30,836.63

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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.