Home / 74,406.24-111,624.96-21,811.44

Finding the Fourth Proportional to 74,406.24, 111,624.96 and 21,811.44

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Solution

The fourth proportional to 74,406.24, 111,624.96 and 21,811.44 is: 32,721.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,406.24 : 111,624.96 = 21,811.44 : x
  2. Step 2: Convert to fraction form
    74,406.24/111,624.96 = 21,811.44/x
  3. Step 3: Cross multiply
    74,406.24x = 111,624.96 × 21,811.44
  4. Step 4: Simplify right side
    74,406.24x = 2,434,701,117.54
  5. Step 5: Solve for x
    x = 2,434,701,117.54/74,406.24
  6. Step 6: Final answer
    x = 32,721.73

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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.