Home / 68,138.50-102,289.83-49,177.21

Finding the Fourth Proportional to 68,138.50, 102,289.83 and 49,177.21

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Solution

The fourth proportional to 68,138.50, 102,289.83 and 49,177.21 is: 73,825.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,138.50 : 102,289.83 = 49,177.21 : x
  2. Step 2: Convert to fraction form
    68,138.50/102,289.83 = 49,177.21/x
  3. Step 3: Cross multiply
    68,138.50x = 102,289.83 × 49,177.21
  4. Step 4: Simplify right side
    68,138.50x = 5,030,328,450.77
  5. Step 5: Solve for x
    x = 5,030,328,450.77/68,138.50
  6. Step 6: Final answer
    x = 73,825.05

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1.5x scale

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.