Home / 50,579.31-75,877.21-18,991.82

Finding the Fourth Proportional to 50,579.31, 75,877.21 and 18,991.82

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Solution

The fourth proportional to 50,579.31, 75,877.21 and 18,991.82 is: 28,490.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,579.31 : 75,877.21 = 18,991.82 : x
  2. Step 2: Convert to fraction form
    50,579.31/75,877.21 = 18,991.82/x
  3. Step 3: Cross multiply
    50,579.31x = 75,877.21 × 18,991.82
  4. Step 4: Simplify right side
    50,579.31x = 1,441,045,994.22
  5. Step 5: Solve for x
    x = 1,441,045,994.22/50,579.31
  6. Step 6: Final answer
    x = 28,490.82

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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.