Home / 39,976.51-55,400.92-39,412.75

Finding the Fourth Proportional to 39,976.51, 55,400.92 and 39,412.75

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Solution

The fourth proportional to 39,976.51, 55,400.92 and 39,412.75 is: 54,619.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,976.51 : 55,400.92 = 39,412.75 : x
  2. Step 2: Convert to fraction form
    39,976.51/55,400.92 = 39,412.75/x
  3. Step 3: Cross multiply
    39,976.51x = 55,400.92 × 39,412.75
  4. Step 4: Simplify right side
    39,976.51x = 2,183,502,609.73
  5. Step 5: Solve for x
    x = 2,183,502,609.73/39,976.51
  6. Step 6: Final answer
    x = 54,619.64

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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.