Home / 45,450.88-68,212.32-19,173.76

Finding the Fourth Proportional to 45,450.88, 68,212.32 and 19,173.76

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Solution

The fourth proportional to 45,450.88, 68,212.32 and 19,173.76 is: 28,775.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,450.88 : 68,212.32 = 19,173.76 : x
  2. Step 2: Convert to fraction form
    45,450.88/68,212.32 = 19,173.76/x
  3. Step 3: Cross multiply
    45,450.88x = 68,212.32 × 19,173.76
  4. Step 4: Simplify right side
    45,450.88x = 1,307,886,652.72
  5. Step 5: Solve for x
    x = 1,307,886,652.72/45,450.88
  6. Step 6: Final answer
    x = 28,775.83

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1.5x scale

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.