Home / 90,971.55-125,538.03-50,682.83

Finding the Fourth Proportional to 90,971.55, 125,538.03 and 50,682.83

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Solution

The fourth proportional to 90,971.55, 125,538.03 and 50,682.83 is: 69,940.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,971.55 : 125,538.03 = 50,682.83 : x
  2. Step 2: Convert to fraction form
    90,971.55/125,538.03 = 50,682.83/x
  3. Step 3: Cross multiply
    90,971.55x = 125,538.03 × 50,682.83
  4. Step 4: Simplify right side
    90,971.55x = 6,362,622,005.33
  5. Step 5: Solve for x
    x = 6,362,622,005.33/90,971.55
  6. Step 6: Final answer
    x = 69,940.79

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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.