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Finding the Fourth Proportional to 37,080, 51,170.88 and 20,313.60

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Solution

The fourth proportional to 37,080, 51,170.88 and 20,313.60 is: 28,033.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,080 : 51,170.88 = 20,313.60 : x
  2. Step 2: Convert to fraction form
    37,080/51,170.88 = 20,313.60/x
  3. Step 3: Cross multiply
    37,080x = 51,170.88 × 20,313.60
  4. Step 4: Simplify right side
    37,080x = 1,039,464,787.97
  5. Step 5: Solve for x
    x = 1,039,464,787.97/37,080
  6. Step 6: Final answer
    x = 28,033.03

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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.