Home / 84,919.67-127,378.13-21,739.26

Finding the Fourth Proportional to 84,919.67, 127,378.13 and 21,739.26

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Solution

The fourth proportional to 84,919.67, 127,378.13 and 21,739.26 is: 32,608.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,919.67 : 127,378.13 = 21,739.26 : x
  2. Step 2: Convert to fraction form
    84,919.67/127,378.13 = 21,739.26/x
  3. Step 3: Cross multiply
    84,919.67x = 127,378.13 × 21,739.26
  4. Step 4: Simplify right side
    84,919.67x = 2,769,106,286.38
  5. Step 5: Solve for x
    x = 2,769,106,286.38/84,919.67
  6. Step 6: Final answer
    x = 32,608.54

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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.