Home / 81,540.41-112,477.97-51,277.73

Finding the Fourth Proportional to 81,540.41, 112,477.97 and 51,277.73

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Solution

The fourth proportional to 81,540.41, 112,477.97 and 51,277.73 is: 70,733.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,540.41 : 112,477.97 = 51,277.73 : x
  2. Step 2: Convert to fraction form
    81,540.41/112,477.97 = 51,277.73/x
  3. Step 3: Cross multiply
    81,540.41x = 112,477.97 × 51,277.73
  4. Step 4: Simplify right side
    81,540.41x = 5,767,614,542.41
  5. Step 5: Solve for x
    x = 5,767,614,542.41/81,540.41
  6. Step 6: Final answer
    x = 70,733.21

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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.