Home / 81,556.74-112,546.44-45,745.92

Finding the Fourth Proportional to 81,556.74, 112,546.44 and 45,745.92

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Solution

The fourth proportional to 81,556.74, 112,546.44 and 45,745.92 is: 63,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,556.74 : 112,546.44 = 45,745.92 : x
  2. Step 2: Convert to fraction form
    81,556.74/112,546.44 = 45,745.92/x
  3. Step 3: Cross multiply
    81,556.74x = 112,546.44 × 45,745.92
  4. Step 4: Simplify right side
    81,556.74x = 5,148,540,440.52
  5. Step 5: Solve for x
    x = 5,148,540,440.52/81,556.74
  6. Step 6: Final answer
    x = 63,128.33

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1.5x scale

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.