Home / 68,023.37-102,035.29-20,638.86

Finding the Fourth Proportional to 68,023.37, 102,035.29 and 20,638.86

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Solution

The fourth proportional to 68,023.37, 102,035.29 and 20,638.86 is: 30,958.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,023.37 : 102,035.29 = 20,638.86 : x
  2. Step 2: Convert to fraction form
    68,023.37/102,035.29 = 20,638.86/x
  3. Step 3: Cross multiply
    68,023.37x = 102,035.29 × 20,638.86
  4. Step 4: Simplify right side
    68,023.37x = 2,105,892,065.37
  5. Step 5: Solve for x
    x = 2,105,892,065.37/68,023.37
  6. Step 6: Final answer
    x = 30,958.36

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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.