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Finding the Fourth Proportional to 49,184.80, 73,786.80 and 21,104.80

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Solution

The fourth proportional to 49,184.80, 73,786.80 and 21,104.80 is: 31,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,184.80 : 73,786.80 = 21,104.80 : x
  2. Step 2: Convert to fraction form
    49,184.80/73,786.80 = 21,104.80/x
  3. Step 3: Cross multiply
    49,184.80x = 73,786.80 × 21,104.80
  4. Step 4: Simplify right side
    49,184.80x = 1,557,255,656.64
  5. Step 5: Solve for x
    x = 1,557,255,656.64/49,184.80
  6. Step 6: Final answer
    x = 31,661.32

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1.5x scale

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.