Home / 45,788.50-68,674.65-20,822.70

Finding the Fourth Proportional to 45,788.50, 68,674.65 and 20,822.70

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Solution

The fourth proportional to 45,788.50, 68,674.65 and 20,822.70 is: 31,230.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,788.50 : 68,674.65 = 20,822.70 : x
  2. Step 2: Convert to fraction form
    45,788.50/68,674.65 = 20,822.70/x
  3. Step 3: Cross multiply
    45,788.50x = 68,674.65 × 20,822.70
  4. Step 4: Simplify right side
    45,788.50x = 1,429,991,634.56
  5. Step 5: Solve for x
    x = 1,429,991,634.56/45,788.50
  6. Step 6: Final answer
    x = 31,230.37

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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.