Home / 82,130.16-113,357.20-51,896.28

Finding the Fourth Proportional to 82,130.16, 113,357.20 and 51,896.28

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Solution

The fourth proportional to 82,130.16, 113,357.20 and 51,896.28 is: 71,627.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,130.16 : 113,357.20 = 51,896.28 : x
  2. Step 2: Convert to fraction form
    82,130.16/113,357.20 = 51,896.28/x
  3. Step 3: Cross multiply
    82,130.16x = 113,357.20 × 51,896.28
  4. Step 4: Simplify right side
    82,130.16x = 5,882,816,991.22
  5. Step 5: Solve for x
    x = 5,882,816,991.22/82,130.16
  6. Step 6: Final answer
    x = 71,627.97

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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.