Home / 78,201.59-117,284.37-46,620.54

Finding the Fourth Proportional to 78,201.59, 117,284.37 and 46,620.54

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Solution

The fourth proportional to 78,201.59, 117,284.37 and 46,620.54 is: 69,920.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,201.59 : 117,284.37 = 46,620.54 : x
  2. Step 2: Convert to fraction form
    78,201.59/117,284.37 = 46,620.54/x
  3. Step 3: Cross multiply
    78,201.59x = 117,284.37 × 46,620.54
  4. Step 4: Simplify right side
    78,201.59x = 5,467,860,662.96
  5. Step 5: Solve for x
    x = 5,467,860,662.96/78,201.59
  6. Step 6: Final answer
    x = 69,920.07

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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.