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Finding the Fourth Proportional to 66,480.63, 91,751.75 and 37,811.49

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Solution

The fourth proportional to 66,480.63, 91,751.75 and 37,811.49 is: 52,184.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,480.63 : 91,751.75 = 37,811.49 : x
  2. Step 2: Convert to fraction form
    66,480.63/91,751.75 = 37,811.49/x
  3. Step 3: Cross multiply
    66,480.63x = 91,751.75 × 37,811.49
  4. Step 4: Simplify right side
    66,480.63x = 3,469,270,377.61
  5. Step 5: Solve for x
    x = 3,469,270,377.61/66,480.63
  6. Step 6: Final answer
    x = 52,184.68

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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.