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Finding the Fourth Proportional to 61,720, 92,560.88 and 22,272

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Solution

The fourth proportional to 61,720, 92,560.88 and 22,272 is: 33,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,720 : 92,560.88 = 22,272 : x
  2. Step 2: Convert to fraction form
    61,720/92,560.88 = 22,272/x
  3. Step 3: Cross multiply
    61,720x = 92,560.88 × 22,272
  4. Step 4: Simplify right side
    61,720x = 2,061,515,919.36
  5. Step 5: Solve for x
    x = 2,061,515,919.36/61,720
  6. Step 6: Final answer
    x = 33,401.10

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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.