Home / 91,245.94-125,998.66-57,313.42

Finding the Fourth Proportional to 91,245.94, 125,998.66 and 57,313.42

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Solution

The fourth proportional to 91,245.94, 125,998.66 and 57,313.42 is: 79,142.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,245.94 : 125,998.66 = 57,313.42 : x
  2. Step 2: Convert to fraction form
    91,245.94/125,998.66 = 57,313.42/x
  3. Step 3: Cross multiply
    91,245.94x = 125,998.66 × 57,313.42
  4. Step 4: Simplify right side
    91,245.94x = 7,221,414,120.02
  5. Step 5: Solve for x
    x = 7,221,414,120.02/91,245.94
  6. Step 6: Final answer
    x = 79,142.31

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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.