Home / 81,983.38-113,137.44-46,174

Finding the Fourth Proportional to 81,983.38, 113,137.44 and 46,174

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Solution

The fourth proportional to 81,983.38, 113,137.44 and 46,174 is: 63,720.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,983.38 : 113,137.44 = 46,174 : x
  2. Step 2: Convert to fraction form
    81,983.38/113,137.44 = 46,174/x
  3. Step 3: Cross multiply
    81,983.38x = 113,137.44 × 46,174
  4. Step 4: Simplify right side
    81,983.38x = 5,224,008,154.56
  5. Step 5: Solve for x
    x = 5,224,008,154.56/81,983.38
  6. Step 6: Final answer
    x = 63,720.33

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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.