Home / 76,845.70-106,057.41-45,027.28

Finding the Fourth Proportional to 76,845.70, 106,057.41 and 45,027.28

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Solution

The fourth proportional to 76,845.70, 106,057.41 and 45,027.28 is: 62,143.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,845.70 : 106,057.41 = 45,027.28 : x
  2. Step 2: Convert to fraction form
    76,845.70/106,057.41 = 45,027.28/x
  3. Step 3: Cross multiply
    76,845.70x = 106,057.41 × 45,027.28
  4. Step 4: Simplify right side
    76,845.70x = 4,775,476,696.14
  5. Step 5: Solve for x
    x = 4,775,476,696.14/76,845.70
  6. Step 6: Final answer
    x = 62,143.71

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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.