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Finding the Fourth Proportional to 84,684.91, 127,076.56 and 37,937.78

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Solution

The fourth proportional to 84,684.91, 127,076.56 and 37,937.78 is: 56,928.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,684.91 : 127,076.56 = 37,937.78 : x
  2. Step 2: Convert to fraction form
    84,684.91/127,076.56 = 37,937.78/x
  3. Step 3: Cross multiply
    84,684.91x = 127,076.56 × 37,937.78
  4. Step 4: Simplify right side
    84,684.91x = 4,821,002,704.44
  5. Step 5: Solve for x
    x = 4,821,002,704.44/84,684.91
  6. Step 6: Final answer
    x = 56,928.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.