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Finding the Fourth Proportional to 68,331.40, 102,522.70 and 26,808.20

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Solution

The fourth proportional to 68,331.40, 102,522.70 and 26,808.20 is: 40,222.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,331.40 : 102,522.70 = 26,808.20 : x
  2. Step 2: Convert to fraction form
    68,331.40/102,522.70 = 26,808.20/x
  3. Step 3: Cross multiply
    68,331.40x = 102,522.70 × 26,808.20
  4. Step 4: Simplify right side
    68,331.40x = 2,748,449,046.14
  5. Step 5: Solve for x
    x = 2,748,449,046.14/68,331.40
  6. Step 6: Final answer
    x = 40,222.34

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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.