Home / 78,093.48-117,202.18-40,664.20

Finding the Fourth Proportional to 78,093.48, 117,202.18 and 40,664.20

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Solution

The fourth proportional to 78,093.48, 117,202.18 and 40,664.20 is: 61,028.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,093.48 : 117,202.18 = 40,664.20 : x
  2. Step 2: Convert to fraction form
    78,093.48/117,202.18 = 40,664.20/x
  3. Step 3: Cross multiply
    78,093.48x = 117,202.18 × 40,664.20
  4. Step 4: Simplify right side
    78,093.48x = 4,765,932,887.96
  5. Step 5: Solve for x
    x = 4,765,932,887.96/78,093.48
  6. Step 6: Final answer
    x = 61,028.56

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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.