Home / 75,855.12-104,655.09-49,013.43

Finding the Fourth Proportional to 75,855.12, 104,655.09 and 49,013.43

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Solution

The fourth proportional to 75,855.12, 104,655.09 and 49,013.43 is: 67,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,855.12 : 104,655.09 = 49,013.43 : x
  2. Step 2: Convert to fraction form
    75,855.12/104,655.09 = 49,013.43/x
  3. Step 3: Cross multiply
    75,855.12x = 104,655.09 × 49,013.43
  4. Step 4: Simplify right side
    75,855.12x = 5,129,504,927.86
  5. Step 5: Solve for x
    x = 5,129,504,927.86/75,855.12
  6. Step 6: Final answer
    x = 67,622.40

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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.