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Finding the Fourth Proportional to 56,284.44, 84,438.44 and 21,223.84

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Solution

The fourth proportional to 56,284.44, 84,438.44 and 21,223.84 is: 31,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,284.44 : 84,438.44 = 21,223.84 : x
  2. Step 2: Convert to fraction form
    56,284.44/84,438.44 = 21,223.84/x
  3. Step 3: Cross multiply
    56,284.44x = 84,438.44 × 21,223.84
  4. Step 4: Simplify right side
    56,284.44x = 1,792,107,940.41
  5. Step 5: Solve for x
    x = 1,792,107,940.41/56,284.44
  6. Step 6: Final answer
    x = 31,840.20

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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.