Home / 74,083.23-111,135.78-21,485.88

Finding the Fourth Proportional to 74,083.23, 111,135.78 and 21,485.88

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Solution

The fourth proportional to 74,083.23, 111,135.78 and 21,485.88 is: 32,231.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,083.23 : 111,135.78 = 21,485.88 : x
  2. Step 2: Convert to fraction form
    74,083.23/111,135.78 = 21,485.88/x
  3. Step 3: Cross multiply
    74,083.23x = 111,135.78 × 21,485.88
  4. Step 4: Simplify right side
    74,083.23x = 2,387,850,032.79
  5. Step 5: Solve for x
    x = 2,387,850,032.79/74,083.23
  6. Step 6: Final answer
    x = 32,231.99

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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.