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Finding the Fourth Proportional to 68,522.58, 102,794.96 and 21,126.58

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Solution

The fourth proportional to 68,522.58, 102,794.96 and 21,126.58 is: 31,693.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,522.58 : 102,794.96 = 21,126.58 : x
  2. Step 2: Convert to fraction form
    68,522.58/102,794.96 = 21,126.58/x
  3. Step 3: Cross multiply
    68,522.58x = 102,794.96 × 21,126.58
  4. Step 4: Simplify right side
    68,522.58x = 2,171,705,946.04
  5. Step 5: Solve for x
    x = 2,171,705,946.04/68,522.58
  6. Step 6: Final answer
    x = 31,693.29

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1.5x scale

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.