Home / 74,136.20-111,211.58-21,546.16

Finding the Fourth Proportional to 74,136.20, 111,211.58 and 21,546.16

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Solution

The fourth proportional to 74,136.20, 111,211.58 and 21,546.16 is: 32,321.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,136.20 : 111,211.58 = 21,546.16 : x
  2. Step 2: Convert to fraction form
    74,136.20/111,211.58 = 21,546.16/x
  3. Step 3: Cross multiply
    74,136.20x = 111,211.58 × 21,546.16
  4. Step 4: Simplify right side
    74,136.20x = 2,396,182,496.53
  5. Step 5: Solve for x
    x = 2,396,182,496.53/74,136.20
  6. Step 6: Final answer
    x = 32,321.36

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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.