Home / 45,851.79-68,777.94-20,874.37

Finding the Fourth Proportional to 45,851.79, 68,777.94 and 20,874.37

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Solution

The fourth proportional to 45,851.79, 68,777.94 and 20,874.37 is: 31,311.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,851.79 : 68,777.94 = 20,874.37 : x
  2. Step 2: Convert to fraction form
    45,851.79/68,777.94 = 20,874.37/x
  3. Step 3: Cross multiply
    45,851.79x = 68,777.94 × 20,874.37
  4. Step 4: Simplify right side
    45,851.79x = 1,435,696,167.40
  5. Step 5: Solve for x
    x = 1,435,696,167.40/45,851.79
  6. Step 6: Final answer
    x = 31,311.67

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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.