Home / 69,759.54-104,628.12-19,146.75

Finding the Fourth Proportional to 69,759.54, 104,628.12 and 19,146.75

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Solution

The fourth proportional to 69,759.54, 104,628.12 and 19,146.75 is: 28,717.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,759.54 : 104,628.12 = 19,146.75 : x
  2. Step 2: Convert to fraction form
    69,759.54/104,628.12 = 19,146.75/x
  3. Step 3: Cross multiply
    69,759.54x = 104,628.12 × 19,146.75
  4. Step 4: Simplify right side
    69,759.54x = 2,003,288,384.81
  5. Step 5: Solve for x
    x = 2,003,288,384.81/69,759.54
  6. Step 6: Final answer
    x = 28,717.05

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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.