Home / 91,771.70-126,645.24-51,485.50

Finding the Fourth Proportional to 91,771.70, 126,645.24 and 51,485.50

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Solution

The fourth proportional to 91,771.70, 126,645.24 and 51,485.50 is: 71,050.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,771.70 : 126,645.24 = 51,485.50 : x
  2. Step 2: Convert to fraction form
    91,771.70/126,645.24 = 51,485.50/x
  3. Step 3: Cross multiply
    91,771.70x = 126,645.24 × 51,485.50
  4. Step 4: Simplify right side
    91,771.70x = 6,520,393,504.02
  5. Step 5: Solve for x
    x = 6,520,393,504.02/91,771.70
  6. Step 6: Final answer
    x = 71,050.15

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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.