Home / 53,261.97-79,879.13-15,813.24

Finding the Fourth Proportional to 53,261.97, 79,879.13 and 15,813.24

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Solution

The fourth proportional to 53,261.97, 79,879.13 and 15,813.24 is: 23,715.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,261.97 : 79,879.13 = 15,813.24 : x
  2. Step 2: Convert to fraction form
    53,261.97/79,879.13 = 15,813.24/x
  3. Step 3: Cross multiply
    53,261.97x = 79,879.13 × 15,813.24
  4. Step 4: Simplify right side
    53,261.97x = 1,263,147,774.62
  5. Step 5: Solve for x
    x = 1,263,147,774.62/53,261.97
  6. Step 6: Final answer
    x = 23,715.75

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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.