Home / 68,111.45-102,163.06-25,408.65

Finding the Fourth Proportional to 68,111.45, 102,163.06 and 25,408.65

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Solution

The fourth proportional to 68,111.45, 102,163.06 and 25,408.65 is: 38,111.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,111.45 : 102,163.06 = 25,408.65 : x
  2. Step 2: Convert to fraction form
    68,111.45/102,163.06 = 25,408.65/x
  3. Step 3: Cross multiply
    68,111.45x = 102,163.06 × 25,408.65
  4. Step 4: Simplify right side
    68,111.45x = 2,595,825,849.34
  5. Step 5: Solve for x
    x = 2,595,825,849.34/68,111.45
  6. Step 6: Final answer
    x = 38,111.45

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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.