Home / 71,724.97-98,985.41-39,896.83

Finding the Fourth Proportional to 71,724.97, 98,985.41 and 39,896.83

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Solution

The fourth proportional to 71,724.97, 98,985.41 and 39,896.83 is: 55,060.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,724.97 : 98,985.41 = 39,896.83 : x
  2. Step 2: Convert to fraction form
    71,724.97/98,985.41 = 39,896.83/x
  3. Step 3: Cross multiply
    71,724.97x = 98,985.41 × 39,896.83
  4. Step 4: Simplify right side
    71,724.97x = 3,949,204,075.25
  5. Step 5: Solve for x
    x = 3,949,204,075.25/71,724.97
  6. Step 6: Final answer
    x = 55,060.38

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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.