Home / 54,216.70-81,337.20-20,933.80

Finding the Fourth Proportional to 54,216.70, 81,337.20 and 20,933.80

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Solution

The fourth proportional to 54,216.70, 81,337.20 and 20,933.80 is: 31,405.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,216.70 : 81,337.20 = 20,933.80 : x
  2. Step 2: Convert to fraction form
    54,216.70/81,337.20 = 20,933.80/x
  3. Step 3: Cross multiply
    54,216.70x = 81,337.20 × 20,933.80
  4. Step 4: Simplify right side
    54,216.70x = 1,702,696,677.36
  5. Step 5: Solve for x
    x = 1,702,696,677.36/54,216.70
  6. Step 6: Final answer
    x = 31,405.39

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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.