Home / 55,320.21-82,954.40-20,235.33

Finding the Fourth Proportional to 55,320.21, 82,954.40 and 20,235.33

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Solution

The fourth proportional to 55,320.21, 82,954.40 and 20,235.33 is: 30,343.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,320.21 : 82,954.40 = 20,235.33 : x
  2. Step 2: Convert to fraction form
    55,320.21/82,954.40 = 20,235.33/x
  3. Step 3: Cross multiply
    55,320.21x = 82,954.40 × 20,235.33
  4. Step 4: Simplify right side
    55,320.21x = 1,678,609,557.78
  5. Step 5: Solve for x
    x = 1,678,609,557.78/55,320.21
  6. Step 6: Final answer
    x = 30,343.51

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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.