Home / 55,120.68-82,631.79-20,035.62

Finding the Fourth Proportional to 55,120.68, 82,631.79 and 20,035.62

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Solution

The fourth proportional to 55,120.68, 82,631.79 and 20,035.62 is: 30,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,120.68 : 82,631.79 = 20,035.62 : x
  2. Step 2: Convert to fraction form
    55,120.68/82,631.79 = 20,035.62/x
  3. Step 3: Cross multiply
    55,120.68x = 82,631.79 × 20,035.62
  4. Step 4: Simplify right side
    55,120.68x = 1,655,579,144.36
  5. Step 5: Solve for x
    x = 1,655,579,144.36/55,120.68
  6. Step 6: Final answer
    x = 30,035.54

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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.