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Finding the Fourth Proportional to 45,627.50, 68,441.15 and 12,348.45

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Solution

The fourth proportional to 45,627.50, 68,441.15 and 12,348.45 is: 18,522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,627.50 : 68,441.15 = 12,348.45 : x
  2. Step 2: Convert to fraction form
    45,627.50/68,441.15 = 12,348.45/x
  3. Step 3: Cross multiply
    45,627.50x = 68,441.15 × 12,348.45
  4. Step 4: Simplify right side
    45,627.50x = 845,142,149.59
  5. Step 5: Solve for x
    x = 845,142,149.59/45,627.50
  6. Step 6: Final answer
    x = 18,522.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.