Home / 55,311.96-82,942.02-20,227.08

Finding the Fourth Proportional to 55,311.96, 82,942.02 and 20,227.08

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Solution

The fourth proportional to 55,311.96, 82,942.02 and 20,227.08 is: 30,331.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,311.96 : 82,942.02 = 20,227.08 : x
  2. Step 2: Convert to fraction form
    55,311.96/82,942.02 = 20,227.08/x
  3. Step 3: Cross multiply
    55,311.96x = 82,942.02 × 20,227.08
  4. Step 4: Simplify right side
    55,311.96x = 1,677,674,873.90
  5. Step 5: Solve for x
    x = 1,677,674,873.90/55,311.96
  6. Step 6: Final answer
    x = 30,331.14

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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.