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Finding the Fourth Proportional to 85,284.50, 127,963.50 and 35,375.79

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Solution

The fourth proportional to 85,284.50, 127,963.50 and 35,375.79 is: 53,078.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,284.50 : 127,963.50 = 35,375.79 : x
  2. Step 2: Convert to fraction form
    85,284.50/127,963.50 = 35,375.79/x
  3. Step 3: Cross multiply
    85,284.50x = 127,963.50 × 35,375.79
  4. Step 4: Simplify right side
    85,284.50x = 4,526,809,531.07
  5. Step 5: Solve for x
    x = 4,526,809,531.07/85,284.50
  6. Step 6: Final answer
    x = 53,078.93

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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.