Home / 91,025.73-125,619.77-50,739.78

Finding the Fourth Proportional to 91,025.73, 125,619.77 and 50,739.78

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Solution

The fourth proportional to 91,025.73, 125,619.77 and 50,739.78 is: 70,023.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,025.73 : 125,619.77 = 50,739.78 : x
  2. Step 2: Convert to fraction form
    91,025.73/125,619.77 = 50,739.78/x
  3. Step 3: Cross multiply
    91,025.73x = 125,619.77 × 50,739.78
  4. Step 4: Simplify right side
    91,025.73x = 6,373,919,239.75
  5. Step 5: Solve for x
    x = 6,373,919,239.75/91,025.73
  6. Step 6: Final answer
    x = 70,023.27

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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.