Home / 53,721.72-80,582.76-18,661.68

Finding the Fourth Proportional to 53,721.72, 80,582.76 and 18,661.68

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Solution

The fourth proportional to 53,721.72, 80,582.76 and 18,661.68 is: 27,992.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,721.72 : 80,582.76 = 18,661.68 : x
  2. Step 2: Convert to fraction form
    53,721.72/80,582.76 = 18,661.68/x
  3. Step 3: Cross multiply
    53,721.72x = 80,582.76 × 18,661.68
  4. Step 4: Simplify right side
    53,721.72x = 1,503,809,680.64
  5. Step 5: Solve for x
    x = 1,503,809,680.64/53,721.72
  6. Step 6: Final answer
    x = 27,992.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.