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Finding the Fourth Proportional to 45,549.60, 68,205 and 36,617.40

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Solution

The fourth proportional to 45,549.60, 68,205 and 36,617.40 is: 54,830.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,549.60 : 68,205 = 36,617.40 : x
  2. Step 2: Convert to fraction form
    45,549.60/68,205 = 36,617.40/x
  3. Step 3: Cross multiply
    45,549.60x = 68,205 × 36,617.40
  4. Step 4: Simplify right side
    45,549.60x = 2,497,489,767
  5. Step 5: Solve for x
    x = 2,497,489,767/45,549.60
  6. Step 6: Final answer
    x = 54,830.11

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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.