Home / 45,961.76-68,942.64-13,129.76

Finding the Fourth Proportional to 45,961.76, 68,942.64 and 13,129.76

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Solution

The fourth proportional to 45,961.76, 68,942.64 and 13,129.76 is: 19,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,961.76 : 68,942.64 = 13,129.76 : x
  2. Step 2: Convert to fraction form
    45,961.76/68,942.64 = 13,129.76/x
  3. Step 3: Cross multiply
    45,961.76x = 68,942.64 × 13,129.76
  4. Step 4: Simplify right side
    45,961.76x = 905,200,316.97
  5. Step 5: Solve for x
    x = 905,200,316.97/45,961.76
  6. Step 6: Final answer
    x = 19,694.64

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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.