Home / 71,447.21-107,169.70-17,412.51

Finding the Fourth Proportional to 71,447.21, 107,169.70 and 17,412.51

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Solution

The fourth proportional to 71,447.21, 107,169.70 and 17,412.51 is: 26,118.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,447.21 : 107,169.70 = 17,412.51 : x
  2. Step 2: Convert to fraction form
    71,447.21/107,169.70 = 17,412.51/x
  3. Step 3: Cross multiply
    71,447.21x = 107,169.70 × 17,412.51
  4. Step 4: Simplify right side
    71,447.21x = 1,866,093,472.95
  5. Step 5: Solve for x
    x = 1,866,093,472.95/71,447.21
  6. Step 6: Final answer
    x = 26,118.49

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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.