Home / 172,319.75-258,479.70-54,000.35

Finding the Fourth Proportional to 172,319.75, 258,479.70 and 54,000.35

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Solution

The fourth proportional to 172,319.75, 258,479.70 and 54,000.35 is: 81,000.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,319.75 : 258,479.70 = 54,000.35 : x
  2. Step 2: Convert to fraction form
    172,319.75/258,479.70 = 54,000.35/x
  3. Step 3: Cross multiply
    172,319.75x = 258,479.70 × 54,000.35
  4. Step 4: Simplify right side
    172,319.75x = 13,957,992,975.50
  5. Step 5: Solve for x
    x = 13,957,992,975.50/172,319.75
  6. Step 6: Final answer
    x = 81,000.54

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1.5x scale

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.