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Finding the Fourth Proportional to 66,725.52, 92,080.08 and 36,510

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Solution

The fourth proportional to 66,725.52, 92,080.08 and 36,510 is: 50,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,725.52 : 92,080.08 = 36,510 : x
  2. Step 2: Convert to fraction form
    66,725.52/92,080.08 = 36,510/x
  3. Step 3: Cross multiply
    66,725.52x = 92,080.08 × 36,510
  4. Step 4: Simplify right side
    66,725.52x = 3,361,843,720.80
  5. Step 5: Solve for x
    x = 3,361,843,720.80/66,725.52
  6. Step 6: Final answer
    x = 50,383.18

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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.