Home / 53,310.99-79,878.96-18,231.51

Finding the Fourth Proportional to 53,310.99, 79,878.96 and 18,231.51

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Solution

The fourth proportional to 53,310.99, 79,878.96 and 18,231.51 is: 27,317.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,310.99 : 79,878.96 = 18,231.51 : x
  2. Step 2: Convert to fraction form
    53,310.99/79,878.96 = 18,231.51/x
  3. Step 3: Cross multiply
    53,310.99x = 79,878.96 × 18,231.51
  4. Step 4: Simplify right side
    53,310.99x = 1,456,314,058.03
  5. Step 5: Solve for x
    x = 1,456,314,058.03/53,310.99
  6. Step 6: Final answer
    x = 27,317.33

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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.