Home / 45,930.33-68,895.45-12,650.58

Finding the Fourth Proportional to 45,930.33, 68,895.45 and 12,650.58

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Solution

The fourth proportional to 45,930.33, 68,895.45 and 12,650.58 is: 18,975.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,930.33 : 68,895.45 = 12,650.58 : x
  2. Step 2: Convert to fraction form
    45,930.33/68,895.45 = 12,650.58/x
  3. Step 3: Cross multiply
    45,930.33x = 68,895.45 × 12,650.58
  4. Step 4: Simplify right side
    45,930.33x = 871,567,401.86
  5. Step 5: Solve for x
    x = 871,567,401.86/45,930.33
  6. Step 6: Final answer
    x = 18,975.86

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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.