Home / 172,319.74-258,479.70-54,000.34

Finding the Fourth Proportional to 172,319.74, 258,479.70 and 54,000.34

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Solution

The fourth proportional to 172,319.74, 258,479.70 and 54,000.34 is: 81,000.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,319.74 : 258,479.70 = 54,000.34 : x
  2. Step 2: Convert to fraction form
    172,319.74/258,479.70 = 54,000.34/x
  3. Step 3: Cross multiply
    172,319.74x = 258,479.70 × 54,000.34
  4. Step 4: Simplify right side
    172,319.74x = 13,957,991,036.90
  5. Step 5: Solve for x
    x = 13,957,991,036.90/172,319.74
  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.