Home / 55,816.26-83,757.03-20,780.74

Finding the Fourth Proportional to 55,816.26, 83,757.03 and 20,780.74

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Solution

The fourth proportional to 55,816.26, 83,757.03 and 20,780.74 is: 31,183.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,816.26 : 83,757.03 = 20,780.74 : x
  2. Step 2: Convert to fraction form
    55,816.26/83,757.03 = 20,780.74/x
  3. Step 3: Cross multiply
    55,816.26x = 83,757.03 × 20,780.74
  4. Step 4: Simplify right side
    55,816.26x = 1,740,533,063.60
  5. Step 5: Solve for x
    x = 1,740,533,063.60/55,816.26
  6. Step 6: Final answer
    x = 31,183.26

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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.