Home / 55,183.12-76,160.73-30,986.80

Finding the Fourth Proportional to 55,183.12, 76,160.73 and 30,986.80

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Solution

The fourth proportional to 55,183.12, 76,160.73 and 30,986.80 is: 42,766.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,183.12 : 76,160.73 = 30,986.80 : x
  2. Step 2: Convert to fraction form
    55,183.12/76,160.73 = 30,986.80/x
  3. Step 3: Cross multiply
    55,183.12x = 76,160.73 × 30,986.80
  4. Step 4: Simplify right side
    55,183.12x = 2,359,977,308.36
  5. Step 5: Solve for x
    x = 2,359,977,308.36/55,183.12
  6. Step 6: Final answer
    x = 42,766.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.