Home / 70,997.80-97,975.38-39,166.69

Finding the Fourth Proportional to 70,997.80, 97,975.38 and 39,166.69

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Solution

The fourth proportional to 70,997.80, 97,975.38 and 39,166.69 is: 54,049.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,997.80 : 97,975.38 = 39,166.69 : x
  2. Step 2: Convert to fraction form
    70,997.80/97,975.38 = 39,166.69/x
  3. Step 3: Cross multiply
    70,997.80x = 97,975.38 × 39,166.69
  4. Step 4: Simplify right side
    70,997.80x = 3,837,371,336.09
  5. Step 5: Solve for x
    x = 3,837,371,336.09/70,997.80
  6. Step 6: Final answer
    x = 54,049.16

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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.