Home / 55,268.70-82,935.45-20,211.90

Finding the Fourth Proportional to 55,268.70, 82,935.45 and 20,211.90

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Solution

The fourth proportional to 55,268.70, 82,935.45 and 20,211.90 is: 30,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,268.70 : 82,935.45 = 20,211.90 : x
  2. Step 2: Convert to fraction form
    55,268.70/82,935.45 = 20,211.90/x
  3. Step 3: Cross multiply
    55,268.70x = 82,935.45 × 20,211.90
  4. Step 4: Simplify right side
    55,268.70x = 1,676,283,021.86
  5. Step 5: Solve for x
    x = 1,676,283,021.86/55,268.70
  6. Step 6: Final answer
    x = 30,329.70

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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.