Home / 74,302.16-111,452.82-18,142.56

Finding the Fourth Proportional to 74,302.16, 111,452.82 and 18,142.56

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Solution

The fourth proportional to 74,302.16, 111,452.82 and 18,142.56 is: 27,213.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,302.16 : 111,452.82 = 18,142.56 : x
  2. Step 2: Convert to fraction form
    74,302.16/111,452.82 = 18,142.56/x
  3. Step 3: Cross multiply
    74,302.16x = 111,452.82 × 18,142.56
  4. Step 4: Simplify right side
    74,302.16x = 2,022,039,474.02
  5. Step 5: Solve for x
    x = 2,022,039,474.02/74,302.16
  6. Step 6: Final answer
    x = 27,213.74

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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.