Home / 91,515.16-126,290.97-51,229.00

Finding the Fourth Proportional to 91,515.16, 126,290.97 and 51,229.00

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Solution

The fourth proportional to 91,515.16, 126,290.97 and 51,229.00 is: 70,696.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,515.16 : 126,290.97 = 51,229.00 : x
  2. Step 2: Convert to fraction form
    91,515.16/126,290.97 = 51,229.00/x
  3. Step 3: Cross multiply
    91,515.16x = 126,290.97 × 51,229.00
  4. Step 4: Simplify right side
    91,515.16x = 6,469,759,786.40
  5. Step 5: Solve for x
    x = 6,469,759,786.40/91,515.16
  6. Step 6: Final answer
    x = 70,696.05

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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.