Home / 49,884.76-74,819-20,301.40

Finding the Fourth Proportional to 49,884.76, 74,819 and 20,301.40

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Solution

The fourth proportional to 49,884.76, 74,819 and 20,301.40 is: 30,448.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,884.76 : 74,819 = 20,301.40 : x
  2. Step 2: Convert to fraction form
    49,884.76/74,819 = 20,301.40/x
  3. Step 3: Cross multiply
    49,884.76x = 74,819 × 20,301.40
  4. Step 4: Simplify right side
    49,884.76x = 1,518,930,446.60
  5. Step 5: Solve for x
    x = 1,518,930,446.60/49,884.76
  6. Step 6: Final answer
    x = 30,448.79

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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.