Home / 71,037.36-98,028.60-39,205.80

Finding the Fourth Proportional to 71,037.36, 98,028.60 and 39,205.80

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Solution

The fourth proportional to 71,037.36, 98,028.60 and 39,205.80 is: 54,102.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,037.36 : 98,028.60 = 39,205.80 : x
  2. Step 2: Convert to fraction form
    71,037.36/98,028.60 = 39,205.80/x
  3. Step 3: Cross multiply
    71,037.36x = 98,028.60 × 39,205.80
  4. Step 4: Simplify right side
    71,037.36x = 3,843,289,685.88
  5. Step 5: Solve for x
    x = 3,843,289,685.88/71,037.36
  6. Step 6: Final answer
    x = 54,102.37

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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.