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Finding the Fourth Proportional to 61,919.80, 92,879.70 and 22,478.20

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Solution

The fourth proportional to 61,919.80, 92,879.70 and 22,478.20 is: 33,717.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,919.80 : 92,879.70 = 22,478.20 : x
  2. Step 2: Convert to fraction form
    61,919.80/92,879.70 = 22,478.20/x
  3. Step 3: Cross multiply
    61,919.80x = 92,879.70 × 22,478.20
  4. Step 4: Simplify right side
    61,919.80x = 2,087,768,472.54
  5. Step 5: Solve for x
    x = 2,087,768,472.54/61,919.80
  6. Step 6: Final answer
    x = 33,717.30

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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.