Home / 74,236.25-111,364.40-21,645.29

Finding the Fourth Proportional to 74,236.25, 111,364.40 and 21,645.29

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Solution

The fourth proportional to 74,236.25, 111,364.40 and 21,645.29 is: 32,470.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,236.25 : 111,364.40 = 21,645.29 : x
  2. Step 2: Convert to fraction form
    74,236.25/111,364.40 = 21,645.29/x
  3. Step 3: Cross multiply
    74,236.25x = 111,364.40 × 21,645.29
  4. Step 4: Simplify right side
    74,236.25x = 2,410,515,066.20
  5. Step 5: Solve for x
    x = 2,410,515,066.20/74,236.25
  6. Step 6: Final answer
    x = 32,470.86

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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.