Home / 53,738.65-80,615.26-18,673.75

Finding the Fourth Proportional to 53,738.65, 80,615.26 and 18,673.75

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Solution

The fourth proportional to 53,738.65, 80,615.26 and 18,673.75 is: 28,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,738.65 : 80,615.26 = 18,673.75 : x
  2. Step 2: Convert to fraction form
    53,738.65/80,615.26 = 18,673.75/x
  3. Step 3: Cross multiply
    53,738.65x = 80,615.26 × 18,673.75
  4. Step 4: Simplify right side
    53,738.65x = 1,505,388,808.35
  5. Step 5: Solve for x
    x = 1,505,388,808.35/53,738.65
  6. Step 6: Final answer
    x = 28,013.15

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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.