Home / 50,815.58-76,211.12-21,217.37

Finding the Fourth Proportional to 50,815.58, 76,211.12 and 21,217.37

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Solution

The fourth proportional to 50,815.58, 76,211.12 and 21,217.37 is: 31,820.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,815.58 : 76,211.12 = 21,217.37 : x
  2. Step 2: Convert to fraction form
    50,815.58/76,211.12 = 21,217.37/x
  3. Step 3: Cross multiply
    50,815.58x = 76,211.12 × 21,217.37
  4. Step 4: Simplify right side
    50,815.58x = 1,616,999,425.07
  5. Step 5: Solve for x
    x = 1,616,999,425.07/50,815.58
  6. Step 6: Final answer
    x = 31,820.94

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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.