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Finding the Fourth Proportional to 66,384.03, 91,608.80 and 36,169.56

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Solution

The fourth proportional to 66,384.03, 91,608.80 and 36,169.56 is: 49,913.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,384.03 : 91,608.80 = 36,169.56 : x
  2. Step 2: Convert to fraction form
    66,384.03/91,608.80 = 36,169.56/x
  3. Step 3: Cross multiply
    66,384.03x = 91,608.80 × 36,169.56
  4. Step 4: Simplify right side
    66,384.03x = 3,313,449,807.28
  5. Step 5: Solve for x
    x = 3,313,449,807.28/66,384.03
  6. Step 6: Final answer
    x = 49,913.36

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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.