Home / 71,982.06-99,334.60-39,716.98

Finding the Fourth Proportional to 71,982.06, 99,334.60 and 39,716.98

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Solution

The fourth proportional to 71,982.06, 99,334.60 and 39,716.98 is: 54,809.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,982.06 : 99,334.60 = 39,716.98 : x
  2. Step 2: Convert to fraction form
    71,982.06/99,334.60 = 39,716.98/x
  3. Step 3: Cross multiply
    71,982.06x = 99,334.60 × 39,716.98
  4. Step 4: Simplify right side
    71,982.06x = 3,945,270,321.51
  5. Step 5: Solve for x
    x = 3,945,270,321.51/71,982.06
  6. Step 6: Final answer
    x = 54,809.08

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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.