Home / 74,343.30-111,514-18,183.90

Finding the Fourth Proportional to 74,343.30, 111,514 and 18,183.90

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Solution

The fourth proportional to 74,343.30, 111,514 and 18,183.90 is: 27,275.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,343.30 : 111,514 = 18,183.90 : x
  2. Step 2: Convert to fraction form
    74,343.30/111,514 = 18,183.90/x
  3. Step 3: Cross multiply
    74,343.30x = 111,514 × 18,183.90
  4. Step 4: Simplify right side
    74,343.30x = 2,027,759,424.60
  5. Step 5: Solve for x
    x = 2,027,759,424.60/74,343.30
  6. Step 6: Final answer
    x = 27,275.62

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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.