Home / 81,365.32-122,065.41-41,389.87

Finding the Fourth Proportional to 81,365.32, 122,065.41 and 41,389.87

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Solution

The fourth proportional to 81,365.32, 122,065.41 and 41,389.87 is: 62,093.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,365.32 : 122,065.41 = 41,389.87 : x
  2. Step 2: Convert to fraction form
    81,365.32/122,065.41 = 41,389.87/x
  3. Step 3: Cross multiply
    81,365.32x = 122,065.41 × 41,389.87
  4. Step 4: Simplify right side
    81,365.32x = 5,052,271,185.53
  5. Step 5: Solve for x
    x = 5,052,271,185.53/81,365.32
  6. Step 6: Final answer
    x = 62,093.67

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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.