Home / 45,579.80-68,340.01-18,918.44

Finding the Fourth Proportional to 45,579.80, 68,340.01 and 18,918.44

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Solution

The fourth proportional to 45,579.80, 68,340.01 and 18,918.44 is: 28,365.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,579.80 : 68,340.01 = 18,918.44 : x
  2. Step 2: Convert to fraction form
    45,579.80/68,340.01 = 18,918.44/x
  3. Step 3: Cross multiply
    45,579.80x = 68,340.01 × 18,918.44
  4. Step 4: Simplify right side
    45,579.80x = 1,292,886,378.78
  5. Step 5: Solve for x
    x = 1,292,886,378.78/45,579.80
  6. Step 6: Final answer
    x = 28,365.34

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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.