Home / 80,665.41-121,022.73-41,250.21

Finding the Fourth Proportional to 80,665.41, 121,022.73 and 41,250.21

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Solution

The fourth proportional to 80,665.41, 121,022.73 and 41,250.21 is: 61,887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,665.41 : 121,022.73 = 41,250.21 : x
  2. Step 2: Convert to fraction form
    80,665.41/121,022.73 = 41,250.21/x
  3. Step 3: Cross multiply
    80,665.41x = 121,022.73 × 41,250.21
  4. Step 4: Simplify right side
    80,665.41x = 4,992,213,027.27
  5. Step 5: Solve for x
    x = 4,992,213,027.27/80,665.41
  6. Step 6: Final answer
    x = 61,887.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.