Home / 209,745.20-314,623.26-51,971.37

Finding the Fourth Proportional to 209,745.20, 314,623.26 and 51,971.37

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Solution

The fourth proportional to 209,745.20, 314,623.26 and 51,971.37 is: 77,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,745.20 : 314,623.26 = 51,971.37 : x
  2. Step 2: Convert to fraction form
    209,745.20/314,623.26 = 51,971.37/x
  3. Step 3: Cross multiply
    209,745.20x = 314,623.26 × 51,971.37
  4. Step 4: Simplify right side
    209,745.20x = 16,351,401,856.07
  5. Step 5: Solve for x
    x = 16,351,401,856.07/209,745.20
  6. Step 6: Final answer
    x = 77,958.41

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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.