Home / 55,610.40-76,749.66-31,731.60

Finding the Fourth Proportional to 55,610.40, 76,749.66 and 31,731.60

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Solution

The fourth proportional to 55,610.40, 76,749.66 and 31,731.60 is: 43,793.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,610.40 : 76,749.66 = 31,731.60 : x
  2. Step 2: Convert to fraction form
    55,610.40/76,749.66 = 31,731.60/x
  3. Step 3: Cross multiply
    55,610.40x = 76,749.66 × 31,731.60
  4. Step 4: Simplify right side
    55,610.40x = 2,435,389,511.26
  5. Step 5: Solve for x
    x = 2,435,389,511.26/55,610.40
  6. Step 6: Final answer
    x = 43,793.78

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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.