Home / 78,002.54-117,021.42-24,697.75

Finding the Fourth Proportional to 78,002.54, 117,021.42 and 24,697.75

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Solution

The fourth proportional to 78,002.54, 117,021.42 and 24,697.75 is: 37,052.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,002.54 : 117,021.42 = 24,697.75 : x
  2. Step 2: Convert to fraction form
    78,002.54/117,021.42 = 24,697.75/x
  3. Step 3: Cross multiply
    78,002.54x = 117,021.42 × 24,697.75
  4. Step 4: Simplify right side
    78,002.54x = 2,890,165,067.21
  5. Step 5: Solve for x
    x = 2,890,165,067.21/78,002.54
  6. Step 6: Final answer
    x = 37,052.19

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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.