Home / 49,914.16-74,882.40-18,749.68

Finding the Fourth Proportional to 49,914.16, 74,882.40 and 18,749.68

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Solution

The fourth proportional to 49,914.16, 74,882.40 and 18,749.68 is: 28,128.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,914.16 : 74,882.40 = 18,749.68 : x
  2. Step 2: Convert to fraction form
    49,914.16/74,882.40 = 18,749.68/x
  3. Step 3: Cross multiply
    49,914.16x = 74,882.40 × 18,749.68
  4. Step 4: Simplify right side
    49,914.16x = 1,404,021,037.63
  5. Step 5: Solve for x
    x = 1,404,021,037.63/49,914.16
  6. Step 6: Final answer
    x = 28,128.71

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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.