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Finding the Fourth Proportional to 45,997.35, 68,970 and 15,997.80

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Solution

The fourth proportional to 45,997.35, 68,970 and 15,997.80 is: 23,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,997.35 : 68,970 = 15,997.80 : x
  2. Step 2: Convert to fraction form
    45,997.35/68,970 = 15,997.80/x
  3. Step 3: Cross multiply
    45,997.35x = 68,970 × 15,997.80
  4. Step 4: Simplify right side
    45,997.35x = 1,103,368,266
  5. Step 5: Solve for x
    x = 1,103,368,266/45,997.35
  6. Step 6: Final answer
    x = 23,987.65

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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.