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Finding the Fourth Proportional to 85,235.90, 127,947.25 and 35,351.03

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Solution

The fourth proportional to 85,235.90, 127,947.25 and 35,351.03 is: 53,065.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,235.90 : 127,947.25 = 35,351.03 : x
  2. Step 2: Convert to fraction form
    85,235.90/127,947.25 = 35,351.03/x
  3. Step 3: Cross multiply
    85,235.90x = 127,947.25 × 35,351.03
  4. Step 4: Simplify right side
    85,235.90x = 4,523,067,238.37
  5. Step 5: Solve for x
    x = 4,523,067,238.37/85,235.90
  6. Step 6: Final answer
    x = 53,065.29

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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.