Home / 68,182.56-102,279.77-20,808.33

Finding the Fourth Proportional to 68,182.56, 102,279.77 and 20,808.33

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Solution

The fourth proportional to 68,182.56, 102,279.77 and 20,808.33 is: 31,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,182.56 : 102,279.77 = 20,808.33 : x
  2. Step 2: Convert to fraction form
    68,182.56/102,279.77 = 20,808.33/x
  3. Step 3: Cross multiply
    68,182.56x = 102,279.77 × 20,808.33
  4. Step 4: Simplify right side
    68,182.56x = 2,128,271,102.44
  5. Step 5: Solve for x
    x = 2,128,271,102.44/68,182.56
  6. Step 6: Final answer
    x = 31,214.30

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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.