Home / 69,172.14-103,772.78-22,421.37

Finding the Fourth Proportional to 69,172.14, 103,772.78 and 22,421.37

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Solution

The fourth proportional to 69,172.14, 103,772.78 and 22,421.37 is: 33,636.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,172.14 : 103,772.78 = 22,421.37 : x
  2. Step 2: Convert to fraction form
    69,172.14/103,772.78 = 22,421.37/x
  3. Step 3: Cross multiply
    69,172.14x = 103,772.78 × 22,421.37
  4. Step 4: Simplify right side
    69,172.14x = 2,326,727,896.31
  5. Step 5: Solve for x
    x = 2,326,727,896.31/69,172.14
  6. Step 6: Final answer
    x = 33,636.78

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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.