Home / 69,086.66-103,629.75-19,166.66

Finding the Fourth Proportional to 69,086.66, 103,629.75 and 19,166.66

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Solution

The fourth proportional to 69,086.66, 103,629.75 and 19,166.66 is: 28,749.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,086.66 : 103,629.75 = 19,166.66 : x
  2. Step 2: Convert to fraction form
    69,086.66/103,629.75 = 19,166.66/x
  3. Step 3: Cross multiply
    69,086.66x = 103,629.75 × 19,166.66
  4. Step 4: Simplify right side
    69,086.66x = 1,986,236,184.14
  5. Step 5: Solve for x
    x = 1,986,236,184.14/69,086.66
  6. Step 6: Final answer
    x = 28,749.92

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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.