Home / 49,857.28-68,804.40-28,640.32

Finding the Fourth Proportional to 49,857.28, 68,804.40 and 28,640.32

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Solution

The fourth proportional to 49,857.28, 68,804.40 and 28,640.32 is: 39,524.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,857.28 : 68,804.40 = 28,640.32 : x
  2. Step 2: Convert to fraction form
    49,857.28/68,804.40 = 28,640.32/x
  3. Step 3: Cross multiply
    49,857.28x = 68,804.40 × 28,640.32
  4. Step 4: Simplify right side
    49,857.28x = 1,970,580,033.41
  5. Step 5: Solve for x
    x = 1,970,580,033.41/49,857.28
  6. Step 6: Final answer
    x = 39,524.42

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1.5x scale

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.