Home / 71,729.84-98,983.22-39,896.69

Finding the Fourth Proportional to 71,729.84, 98,983.22 and 39,896.69

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Solution

The fourth proportional to 71,729.84, 98,983.22 and 39,896.69 is: 55,055.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,729.84 : 98,983.22 = 39,896.69 : x
  2. Step 2: Convert to fraction form
    71,729.84/98,983.22 = 39,896.69/x
  3. Step 3: Cross multiply
    71,729.84x = 98,983.22 × 39,896.69
  4. Step 4: Simplify right side
    71,729.84x = 3,949,102,149.14
  5. Step 5: Solve for x
    x = 3,949,102,149.14/71,729.84
  6. Step 6: Final answer
    x = 55,055.22

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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.