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Finding the Fourth Proportional to 61,395.50, 92,073 and 19,832.78

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Solution

The fourth proportional to 61,395.50, 92,073 and 19,832.78 is: 29,742.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,395.50 : 92,073 = 19,832.78 : x
  2. Step 2: Convert to fraction form
    61,395.50/92,073 = 19,832.78/x
  3. Step 3: Cross multiply
    61,395.50x = 92,073 × 19,832.78
  4. Step 4: Simplify right side
    61,395.50x = 1,826,063,552.94
  5. Step 5: Solve for x
    x = 1,826,063,552.94/61,395.50
  6. Step 6: Final answer
    x = 29,742.63

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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.