Home / 91,131.54-125,771.25-50,859.30

Finding the Fourth Proportional to 91,131.54, 125,771.25 and 50,859.30

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Solution

The fourth proportional to 91,131.54, 125,771.25 and 50,859.30 is: 70,191.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,131.54 : 125,771.25 = 50,859.30 : x
  2. Step 2: Convert to fraction form
    91,131.54/125,771.25 = 50,859.30/x
  3. Step 3: Cross multiply
    91,131.54x = 125,771.25 × 50,859.30
  4. Step 4: Simplify right side
    91,131.54x = 6,396,637,735.13
  5. Step 5: Solve for x
    x = 6,396,637,735.13/91,131.54
  6. Step 6: Final answer
    x = 70,191.26

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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.