Home / 82,021.50-113,189.68-44,295.75

Finding the Fourth Proportional to 82,021.50, 113,189.68 and 44,295.75

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Solution

The fourth proportional to 82,021.50, 113,189.68 and 44,295.75 is: 61,128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,021.50 : 113,189.68 = 44,295.75 : x
  2. Step 2: Convert to fraction form
    82,021.50/113,189.68 = 44,295.75/x
  3. Step 3: Cross multiply
    82,021.50x = 113,189.68 × 44,295.75
  4. Step 4: Simplify right side
    82,021.50x = 5,013,821,767.86
  5. Step 5: Solve for x
    x = 5,013,821,767.86/82,021.50
  6. Step 6: Final answer
    x = 61,128.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.