Home / 45,849.79-68,774.94-20,872.37

Finding the Fourth Proportional to 45,849.79, 68,774.94 and 20,872.37

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Solution

The fourth proportional to 45,849.79, 68,774.94 and 20,872.37 is: 31,308.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,849.79 : 68,774.94 = 20,872.37 : x
  2. Step 2: Convert to fraction form
    45,849.79/68,774.94 = 20,872.37/x
  3. Step 3: Cross multiply
    45,849.79x = 68,774.94 × 20,872.37
  4. Step 4: Simplify right side
    45,849.79x = 1,435,495,650.53
  5. Step 5: Solve for x
    x = 1,435,495,650.53/45,849.79
  6. Step 6: Final answer
    x = 31,308.67

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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.