Home / 68,236.83-102,373.67-20,850.63

Finding the Fourth Proportional to 68,236.83, 102,373.67 and 20,850.63

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Solution

The fourth proportional to 68,236.83, 102,373.67 and 20,850.63 is: 31,281.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,236.83 : 102,373.67 = 20,850.63 : x
  2. Step 2: Convert to fraction form
    68,236.83/102,373.67 = 20,850.63/x
  3. Step 3: Cross multiply
    68,236.83x = 102,373.67 × 20,850.63
  4. Step 4: Simplify right side
    68,236.83x = 2,134,555,567.04
  5. Step 5: Solve for x
    x = 2,134,555,567.04/68,236.83
  6. Step 6: Final answer
    x = 31,281.58

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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.