Home / 40,782.78-61,167.60-11,193.70

Finding the Fourth Proportional to 40,782.78, 61,167.60 and 11,193.70

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Solution

The fourth proportional to 40,782.78, 61,167.60 and 11,193.70 is: 16,788.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,782.78 : 61,167.60 = 11,193.70 : x
  2. Step 2: Convert to fraction form
    40,782.78/61,167.60 = 11,193.70/x
  3. Step 3: Cross multiply
    40,782.78x = 61,167.60 × 11,193.70
  4. Step 4: Simplify right side
    40,782.78x = 684,691,764.12
  5. Step 5: Solve for x
    x = 684,691,764.12/40,782.78
  6. Step 6: Final answer
    x = 16,788.75

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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.