Home / 49,989.56-75,008.77-21,905.78

Finding the Fourth Proportional to 49,989.56, 75,008.77 and 21,905.78

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Solution

The fourth proportional to 49,989.56, 75,008.77 and 21,905.78 is: 32,869.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,989.56 : 75,008.77 = 21,905.78 : x
  2. Step 2: Convert to fraction form
    49,989.56/75,008.77 = 21,905.78/x
  3. Step 3: Cross multiply
    49,989.56x = 75,008.77 × 21,905.78
  4. Step 4: Simplify right side
    49,989.56x = 1,643,125,183.88
  5. Step 5: Solve for x
    x = 1,643,125,183.88/49,989.56
  6. Step 6: Final answer
    x = 32,869.37

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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.