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Finding the Fourth Proportional to 78,544.03, 117,801.90 and 33,590.68

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Solution

The fourth proportional to 78,544.03, 117,801.90 and 33,590.68 is: 50,379.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,544.03 : 117,801.90 = 33,590.68 : x
  2. Step 2: Convert to fraction form
    78,544.03/117,801.90 = 33,590.68/x
  3. Step 3: Cross multiply
    78,544.03x = 117,801.90 × 33,590.68
  4. Step 4: Simplify right side
    78,544.03x = 3,957,045,417.27
  5. Step 5: Solve for x
    x = 3,957,045,417.27/78,544.03
  6. Step 6: Final answer
    x = 50,379.96

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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.