Home / 78,564.21-117,843.46-34,190.98

Finding the Fourth Proportional to 78,564.21, 117,843.46 and 34,190.98

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Solution

The fourth proportional to 78,564.21, 117,843.46 and 34,190.98 is: 51,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,564.21 : 117,843.46 = 34,190.98 : x
  2. Step 2: Convert to fraction form
    78,564.21/117,843.46 = 34,190.98/x
  3. Step 3: Cross multiply
    78,564.21x = 117,843.46 × 34,190.98
  4. Step 4: Simplify right side
    78,564.21x = 4,029,183,383.99
  5. Step 5: Solve for x
    x = 4,029,183,383.99/78,564.21
  6. Step 6: Final answer
    x = 51,285.23

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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.