Home / 55,081.42-82,634.28-20,021.07

Finding the Fourth Proportional to 55,081.42, 82,634.28 and 20,021.07

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Solution

The fourth proportional to 55,081.42, 82,634.28 and 20,021.07 is: 30,036.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,081.42 : 82,634.28 = 20,021.07 : x
  2. Step 2: Convert to fraction form
    55,081.42/82,634.28 = 20,021.07/x
  3. Step 3: Cross multiply
    55,081.42x = 82,634.28 × 20,021.07
  4. Step 4: Simplify right side
    55,081.42x = 1,654,426,939.08
  5. Step 5: Solve for x
    x = 1,654,426,939.08/55,081.42
  6. Step 6: Final answer
    x = 30,036.03

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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.