Home / 74,480.33-111,727.38-21,173.42

Finding the Fourth Proportional to 74,480.33, 111,727.38 and 21,173.42

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Solution

The fourth proportional to 74,480.33, 111,727.38 and 21,173.42 is: 31,762.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,480.33 : 111,727.38 = 21,173.42 : x
  2. Step 2: Convert to fraction form
    74,480.33/111,727.38 = 21,173.42/x
  3. Step 3: Cross multiply
    74,480.33x = 111,727.38 × 21,173.42
  4. Step 4: Simplify right side
    74,480.33x = 2,365,650,742.24
  5. Step 5: Solve for x
    x = 2,365,650,742.24/74,480.33
  6. Step 6: Final answer
    x = 31,762.09

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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.