Home / 74,136.90-111,208.14-21,546.84

Finding the Fourth Proportional to 74,136.90, 111,208.14 and 21,546.84

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Solution

The fourth proportional to 74,136.90, 111,208.14 and 21,546.84 is: 32,321.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,136.90 : 111,208.14 = 21,546.84 : x
  2. Step 2: Convert to fraction form
    74,136.90/111,208.14 = 21,546.84/x
  3. Step 3: Cross multiply
    74,136.90x = 111,208.14 × 21,546.84
  4. Step 4: Simplify right side
    74,136.90x = 2,396,183,999.28
  5. Step 5: Solve for x
    x = 2,396,183,999.28/74,136.90
  6. Step 6: Final answer
    x = 32,321.07

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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.