Home / 172,377.20-258,565.80-54,048.35

Finding the Fourth Proportional to 172,377.20, 258,565.80 and 54,048.35

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Solution

The fourth proportional to 172,377.20, 258,565.80 and 54,048.35 is: 81,072.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,377.20 : 258,565.80 = 54,048.35 : x
  2. Step 2: Convert to fraction form
    172,377.20/258,565.80 = 54,048.35/x
  3. Step 3: Cross multiply
    172,377.20x = 258,565.80 × 54,048.35
  4. Step 4: Simplify right side
    172,377.20x = 13,975,054,856.43
  5. Step 5: Solve for x
    x = 13,975,054,856.43/172,377.20
  6. Step 6: Final answer
    x = 81,072.53

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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.