Home / 68,311.49-102,475.78-36,678.04

Finding the Fourth Proportional to 68,311.49, 102,475.78 and 36,678.04

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Solution

The fourth proportional to 68,311.49, 102,475.78 and 36,678.04 is: 55,021.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,311.49 : 102,475.78 = 36,678.04 : x
  2. Step 2: Convert to fraction form
    68,311.49/102,475.78 = 36,678.04/x
  3. Step 3: Cross multiply
    68,311.49x = 102,475.78 × 36,678.04
  4. Step 4: Simplify right side
    68,311.49x = 3,758,610,409.99
  5. Step 5: Solve for x
    x = 3,758,610,409.99/68,311.49
  6. Step 6: Final answer
    x = 55,021.65

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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.