Home / 69,419.16-104,129.37-16,828.70

Finding the Fourth Proportional to 69,419.16, 104,129.37 and 16,828.70

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Solution

The fourth proportional to 69,419.16, 104,129.37 and 16,828.70 is: 25,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,419.16 : 104,129.37 = 16,828.70 : x
  2. Step 2: Convert to fraction form
    69,419.16/104,129.37 = 16,828.70/x
  3. Step 3: Cross multiply
    69,419.16x = 104,129.37 × 16,828.70
  4. Step 4: Simplify right side
    69,419.16x = 1,752,361,408.27
  5. Step 5: Solve for x
    x = 1,752,361,408.27/69,419.16
  6. Step 6: Final answer
    x = 25,243.20

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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.