Home / 49,911.40-68,884.66-28,690.21

Finding the Fourth Proportional to 49,911.40, 68,884.66 and 28,690.21

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Solution

The fourth proportional to 49,911.40, 68,884.66 and 28,690.21 is: 39,596.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,911.40 : 68,884.66 = 28,690.21 : x
  2. Step 2: Convert to fraction form
    49,911.40/68,884.66 = 28,690.21/x
  3. Step 3: Cross multiply
    49,911.40x = 68,884.66 × 28,690.21
  4. Step 4: Simplify right side
    49,911.40x = 1,976,315,361.18
  5. Step 5: Solve for x
    x = 1,976,315,361.18/49,911.40
  6. Step 6: Final answer
    x = 39,596.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.