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Finding the Fourth Proportional to 66,179.80, 91,329.02 and 35,965.60

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Solution

The fourth proportional to 66,179.80, 91,329.02 and 35,965.60 is: 49,633.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,179.80 : 91,329.02 = 35,965.60 : x
  2. Step 2: Convert to fraction form
    66,179.80/91,329.02 = 35,965.60/x
  3. Step 3: Cross multiply
    66,179.80x = 91,329.02 × 35,965.60
  4. Step 4: Simplify right side
    66,179.80x = 3,284,703,001.71
  5. Step 5: Solve for x
    x = 3,284,703,001.71/66,179.80
  6. Step 6: Final answer
    x = 49,633.01

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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.