Home / 82,406.40-113,729.22-50,143.28

Finding the Fourth Proportional to 82,406.40, 113,729.22 and 50,143.28

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Solution

The fourth proportional to 82,406.40, 113,729.22 and 50,143.28 is: 69,202.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,406.40 : 113,729.22 = 50,143.28 : x
  2. Step 2: Convert to fraction form
    82,406.40/113,729.22 = 50,143.28/x
  3. Step 3: Cross multiply
    82,406.40x = 113,729.22 × 50,143.28
  4. Step 4: Simplify right side
    82,406.40x = 5,702,756,122.64
  5. Step 5: Solve for x
    x = 5,702,756,122.64/82,406.40
  6. Step 6: Final answer
    x = 69,202.83

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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.