Home / 81,093.27-111,900.76-55,621.39

Finding the Fourth Proportional to 81,093.27, 111,900.76 and 55,621.39

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Solution

The fourth proportional to 81,093.27, 111,900.76 and 55,621.39 is: 76,752.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,093.27 : 111,900.76 = 55,621.39 : x
  2. Step 2: Convert to fraction form
    81,093.27/111,900.76 = 55,621.39/x
  3. Step 3: Cross multiply
    81,093.27x = 111,900.76 × 55,621.39
  4. Step 4: Simplify right side
    81,093.27x = 6,224,075,813.26
  5. Step 5: Solve for x
    x = 6,224,075,813.26/81,093.27
  6. Step 6: Final answer
    x = 76,752.06

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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.