Home / 53,851.36-80,771.28-18,791.68

Finding the Fourth Proportional to 53,851.36, 80,771.28 and 18,791.68

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Solution

The fourth proportional to 53,851.36, 80,771.28 and 18,791.68 is: 28,185.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,851.36 : 80,771.28 = 18,791.68 : x
  2. Step 2: Convert to fraction form
    53,851.36/80,771.28 = 18,791.68/x
  3. Step 3: Cross multiply
    53,851.36x = 80,771.28 × 18,791.68
  4. Step 4: Simplify right side
    53,851.36x = 1,517,828,046.95
  5. Step 5: Solve for x
    x = 1,517,828,046.95/53,851.36
  6. Step 6: Final answer
    x = 28,185.51

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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.