Home / 49,939.76-74,910-12,500.48

Finding the Fourth Proportional to 49,939.76, 74,910 and 12,500.48

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Solution

The fourth proportional to 49,939.76, 74,910 and 12,500.48 is: 18,750.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,939.76 : 74,910 = 12,500.48 : x
  2. Step 2: Convert to fraction form
    49,939.76/74,910 = 12,500.48/x
  3. Step 3: Cross multiply
    49,939.76x = 74,910 × 12,500.48
  4. Step 4: Simplify right side
    49,939.76x = 936,410,956.80
  5. Step 5: Solve for x
    x = 936,410,956.80/49,939.76
  6. Step 6: Final answer
    x = 18,750.81

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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.