Home / 55,163.22-82,665.89-31,421.76

Finding the Fourth Proportional to 55,163.22, 82,665.89 and 31,421.76

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Solution

The fourth proportional to 55,163.22, 82,665.89 and 31,421.76 is: 47,087.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,163.22 : 82,665.89 = 31,421.76 : x
  2. Step 2: Convert to fraction form
    55,163.22/82,665.89 = 31,421.76/x
  3. Step 3: Cross multiply
    55,163.22x = 82,665.89 × 31,421.76
  4. Step 4: Simplify right side
    55,163.22x = 2,597,507,494.87
  5. Step 5: Solve for x
    x = 2,597,507,494.87/55,163.22
  6. Step 6: Final answer
    x = 47,087.67

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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.