Home / 76,620.05-105,675.75-49,771.22

Finding the Fourth Proportional to 76,620.05, 105,675.75 and 49,771.22

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Solution

The fourth proportional to 76,620.05, 105,675.75 and 49,771.22 is: 68,645.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,620.05 : 105,675.75 = 49,771.22 : x
  2. Step 2: Convert to fraction form
    76,620.05/105,675.75 = 49,771.22/x
  3. Step 3: Cross multiply
    76,620.05x = 105,675.75 × 49,771.22
  4. Step 4: Simplify right side
    76,620.05x = 5,259,610,473.54
  5. Step 5: Solve for x
    x = 5,259,610,473.54/76,620.05
  6. Step 6: Final answer
    x = 68,645.36

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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.