Home / 82,022.40-113,189.04-50,191.20

Finding the Fourth Proportional to 82,022.40, 113,189.04 and 50,191.20

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Solution

The fourth proportional to 82,022.40, 113,189.04 and 50,191.20 is: 69,262.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,022.40 : 113,189.04 = 50,191.20 : x
  2. Step 2: Convert to fraction form
    82,022.40/113,189.04 = 50,191.20/x
  3. Step 3: Cross multiply
    82,022.40x = 113,189.04 × 50,191.20
  4. Step 4: Simplify right side
    82,022.40x = 5,681,093,744.45
  5. Step 5: Solve for x
    x = 5,681,093,744.45/82,022.40
  6. Step 6: Final answer
    x = 69,262.71

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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.