Home / 39,788.34-54,879.81-33,778.65

Finding the Fourth Proportional to 39,788.34, 54,879.81 and 33,778.65

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Solution

The fourth proportional to 39,788.34, 54,879.81 and 33,778.65 is: 46,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,788.34 : 54,879.81 = 33,778.65 : x
  2. Step 2: Convert to fraction form
    39,788.34/54,879.81 = 33,778.65/x
  3. Step 3: Cross multiply
    39,788.34x = 54,879.81 × 33,778.65
  4. Step 4: Simplify right side
    39,788.34x = 1,853,765,894.06
  5. Step 5: Solve for x
    x = 1,853,765,894.06/39,788.34
  6. Step 6: Final answer
    x = 46,590.68

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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.