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Finding the Fourth Proportional to 66,169.91, 91,315.05 and 35,955.23

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Solution

The fourth proportional to 66,169.91, 91,315.05 and 35,955.23 is: 49,618.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,169.91 : 91,315.05 = 35,955.23 : x
  2. Step 2: Convert to fraction form
    66,169.91/91,315.05 = 35,955.23/x
  3. Step 3: Cross multiply
    66,169.91x = 91,315.05 × 35,955.23
  4. Step 4: Simplify right side
    66,169.91x = 3,283,253,532.80
  5. Step 5: Solve for x
    x = 3,283,253,532.80/66,169.91
  6. Step 6: Final answer
    x = 49,618.53

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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.