Home / 78,052.28-117,043.79-35,922.15

Finding the Fourth Proportional to 78,052.28, 117,043.79 and 35,922.15

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Solution

The fourth proportional to 78,052.28, 117,043.79 and 35,922.15 is: 53,867.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,052.28 : 117,043.79 = 35,922.15 : x
  2. Step 2: Convert to fraction form
    78,052.28/117,043.79 = 35,922.15/x
  3. Step 3: Cross multiply
    78,052.28x = 117,043.79 × 35,922.15
  4. Step 4: Simplify right side
    78,052.28x = 4,204,464,401.34
  5. Step 5: Solve for x
    x = 4,204,464,401.34/78,052.28
  6. Step 6: Final answer
    x = 53,867.29

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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.