Home / 39,942.01-55,352.98-39,378.25

Finding the Fourth Proportional to 39,942.01, 55,352.98 and 39,378.25

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Solution

The fourth proportional to 39,942.01, 55,352.98 and 39,378.25 is: 54,571.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,942.01 : 55,352.98 = 39,378.25 : x
  2. Step 2: Convert to fraction form
    39,942.01/55,352.98 = 39,378.25/x
  3. Step 3: Cross multiply
    39,942.01x = 55,352.98 × 39,378.25
  4. Step 4: Simplify right side
    39,942.01x = 2,179,703,632.35
  5. Step 5: Solve for x
    x = 2,179,703,632.35/39,942.01
  6. Step 6: Final answer
    x = 54,571.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.