Home / 81,974.80-113,177.52-66,903.46

Finding the Fourth Proportional to 81,974.80, 113,177.52 and 66,903.46

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Solution

The fourth proportional to 81,974.80, 113,177.52 and 66,903.46 is: 92,369.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,974.80 : 113,177.52 = 66,903.46 : x
  2. Step 2: Convert to fraction form
    81,974.80/113,177.52 = 66,903.46/x
  3. Step 3: Cross multiply
    81,974.80x = 113,177.52 × 66,903.46
  4. Step 4: Simplify right side
    81,974.80x = 7,571,967,682.22
  5. Step 5: Solve for x
    x = 7,571,967,682.22/81,974.80
  6. Step 6: Final answer
    x = 92,369.46

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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.