Home / 55,040.82-82,513.80-23,421.90

Finding the Fourth Proportional to 55,040.82, 82,513.80 and 23,421.90

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Solution

The fourth proportional to 55,040.82, 82,513.80 and 23,421.90 is: 35,112.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,040.82 : 82,513.80 = 23,421.90 : x
  2. Step 2: Convert to fraction form
    55,040.82/82,513.80 = 23,421.90/x
  3. Step 3: Cross multiply
    55,040.82x = 82,513.80 × 23,421.90
  4. Step 4: Simplify right side
    55,040.82x = 1,932,629,972.22
  5. Step 5: Solve for x
    x = 1,932,629,972.22/55,040.82
  6. Step 6: Final answer
    x = 35,112.67

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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.