Home / 71,553.20-98,745.96-39,722.60

Finding the Fourth Proportional to 71,553.20, 98,745.96 and 39,722.60

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Solution

The fourth proportional to 71,553.20, 98,745.96 and 39,722.60 is: 54,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,553.20 : 98,745.96 = 39,722.60 : x
  2. Step 2: Convert to fraction form
    71,553.20/98,745.96 = 39,722.60/x
  3. Step 3: Cross multiply
    71,553.20x = 98,745.96 × 39,722.60
  4. Step 4: Simplify right side
    71,553.20x = 3,922,446,270.70
  5. Step 5: Solve for x
    x = 3,922,446,270.70/71,553.20
  6. Step 6: Final answer
    x = 54,818.60

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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.