Home / 172,378.20-258,567.30-54,049.35

Finding the Fourth Proportional to 172,378.20, 258,567.30 and 54,049.35

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Solution

The fourth proportional to 172,378.20, 258,567.30 and 54,049.35 is: 81,074.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,378.20 : 258,567.30 = 54,049.35 : x
  2. Step 2: Convert to fraction form
    172,378.20/258,567.30 = 54,049.35/x
  3. Step 3: Cross multiply
    172,378.20x = 258,567.30 × 54,049.35
  4. Step 4: Simplify right side
    172,378.20x = 13,975,394,496.26
  5. Step 5: Solve for x
    x = 13,975,394,496.26/172,378.20
  6. Step 6: Final answer
    x = 81,074.03

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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.