Home / 91,908.21-126,845.22-51,621.97

Finding the Fourth Proportional to 91,908.21, 126,845.22 and 51,621.97

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Solution

The fourth proportional to 91,908.21, 126,845.22 and 51,621.97 is: 71,245.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,908.21 : 126,845.22 = 51,621.97 : x
  2. Step 2: Convert to fraction form
    91,908.21/126,845.22 = 51,621.97/x
  3. Step 3: Cross multiply
    91,908.21x = 126,845.22 × 51,621.97
  4. Step 4: Simplify right side
    91,908.21x = 6,548,000,141.48
  5. Step 5: Solve for x
    x = 6,548,000,141.48/91,908.21
  6. Step 6: Final answer
    x = 71,245.00

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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.