Home / 55,687.18-76,847.37-31,487.75

Finding the Fourth Proportional to 55,687.18, 76,847.37 and 31,487.75

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Solution

The fourth proportional to 55,687.18, 76,847.37 and 31,487.75 is: 43,452.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,687.18 : 76,847.37 = 31,487.75 : x
  2. Step 2: Convert to fraction form
    55,687.18/76,847.37 = 31,487.75/x
  3. Step 3: Cross multiply
    55,687.18x = 76,847.37 × 31,487.75
  4. Step 4: Simplify right side
    55,687.18x = 2,419,750,774.72
  5. Step 5: Solve for x
    x = 2,419,750,774.72/55,687.18
  6. Step 6: Final answer
    x = 43,452.56

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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.