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Finding the Fourth Proportional to 91,754.85, 126,626.72 and 51,481.38

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Solution

The fourth proportional to 91,754.85, 126,626.72 and 51,481.38 is: 71,047.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,754.85 : 126,626.72 = 51,481.38 : x
  2. Step 2: Convert to fraction form
    91,754.85/126,626.72 = 51,481.38/x
  3. Step 3: Cross multiply
    91,754.85x = 126,626.72 × 51,481.38
  4. Step 4: Simplify right side
    91,754.85x = 6,518,918,033.07
  5. Step 5: Solve for x
    x = 6,518,918,033.07/91,754.85
  6. Step 6: Final answer
    x = 71,047.12

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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.