Home / 68,025.67-102,038.34-18,105.76

Finding the Fourth Proportional to 68,025.67, 102,038.34 and 18,105.76

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Solution

The fourth proportional to 68,025.67, 102,038.34 and 18,105.76 is: 27,158.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,025.67 : 102,038.34 = 18,105.76 : x
  2. Step 2: Convert to fraction form
    68,025.67/102,038.34 = 18,105.76/x
  3. Step 3: Cross multiply
    68,025.67x = 102,038.34 × 18,105.76
  4. Step 4: Simplify right side
    68,025.67x = 1,847,481,694.84
  5. Step 5: Solve for x
    x = 1,847,481,694.84/68,025.67
  6. Step 6: Final answer
    x = 27,158.60

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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.