Home / 73,075.12-100,843.68-39,541.12

Finding the Fourth Proportional to 73,075.12, 100,843.68 and 39,541.12

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Solution

The fourth proportional to 73,075.12, 100,843.68 and 39,541.12 is: 54,566.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,075.12 : 100,843.68 = 39,541.12 : x
  2. Step 2: Convert to fraction form
    73,075.12/100,843.68 = 39,541.12/x
  3. Step 3: Cross multiply
    73,075.12x = 100,843.68 × 39,541.12
  4. Step 4: Simplify right side
    73,075.12x = 3,987,472,052.12
  5. Step 5: Solve for x
    x = 3,987,472,052.12/73,075.12
  6. Step 6: Final answer
    x = 54,566.75

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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.