Home / 45,383.80-68,004.57-28,708.60

Finding the Fourth Proportional to 45,383.80, 68,004.57 and 28,708.60

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Solution

The fourth proportional to 45,383.80, 68,004.57 and 28,708.60 is: 43,017.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,383.80 : 68,004.57 = 28,708.60 : x
  2. Step 2: Convert to fraction form
    45,383.80/68,004.57 = 28,708.60/x
  3. Step 3: Cross multiply
    45,383.80x = 68,004.57 × 28,708.60
  4. Step 4: Simplify right side
    45,383.80x = 1,952,315,998.30
  5. Step 5: Solve for x
    x = 1,952,315,998.30/45,383.80
  6. Step 6: Final answer
    x = 43,017.91

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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.