Home / 68,863.20-103,196.32-39,219.84

Finding the Fourth Proportional to 68,863.20, 103,196.32 and 39,219.84

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Solution

The fourth proportional to 68,863.20, 103,196.32 and 39,219.84 is: 58,773.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,863.20 : 103,196.32 = 39,219.84 : x
  2. Step 2: Convert to fraction form
    68,863.20/103,196.32 = 39,219.84/x
  3. Step 3: Cross multiply
    68,863.20x = 103,196.32 × 39,219.84
  4. Step 4: Simplify right side
    68,863.20x = 4,047,343,158.99
  5. Step 5: Solve for x
    x = 4,047,343,158.99/68,863.20
  6. Step 6: Final answer
    x = 58,773.67

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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.