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Finding the Fourth Proportional to 49,668, 68,522.40 and 28,435.84

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Solution

The fourth proportional to 49,668, 68,522.40 and 28,435.84 is: 39,230.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,668 : 68,522.40 = 28,435.84 : x
  2. Step 2: Convert to fraction form
    49,668/68,522.40 = 28,435.84/x
  3. Step 3: Cross multiply
    49,668x = 68,522.40 × 28,435.84
  4. Step 4: Simplify right side
    49,668x = 1,948,492,002.82
  5. Step 5: Solve for x
    x = 1,948,492,002.82/49,668
  6. Step 6: Final answer
    x = 39,230.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.