Home / 39,845.99-54,868.77-38,961.92

Finding the Fourth Proportional to 39,845.99, 54,868.77 and 38,961.92

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Solution

The fourth proportional to 39,845.99, 54,868.77 and 38,961.92 is: 53,651.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,845.99 : 54,868.77 = 38,961.92 : x
  2. Step 2: Convert to fraction form
    39,845.99/54,868.77 = 38,961.92/x
  3. Step 3: Cross multiply
    39,845.99x = 54,868.77 × 38,961.92
  4. Step 4: Simplify right side
    39,845.99x = 2,137,792,352.89
  5. Step 5: Solve for x
    x = 2,137,792,352.89/39,845.99
  6. Step 6: Final answer
    x = 53,651.39

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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.