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Finding the Fourth Proportional to 66,574.31, 91,872.08 and 36,359.63

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Solution

The fourth proportional to 66,574.31, 91,872.08 and 36,359.63 is: 50,176.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,574.31 : 91,872.08 = 36,359.63 : x
  2. Step 2: Convert to fraction form
    66,574.31/91,872.08 = 36,359.63/x
  3. Step 3: Cross multiply
    66,574.31x = 91,872.08 × 36,359.63
  4. Step 4: Simplify right side
    66,574.31x = 3,340,434,654.33
  5. Step 5: Solve for x
    x = 3,340,434,654.33/66,574.31
  6. Step 6: Final answer
    x = 50,176.03

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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.