Home / 172,319.55-258,479.43-54,000.15

Finding the Fourth Proportional to 172,319.55, 258,479.43 and 54,000.15

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Solution

The fourth proportional to 172,319.55, 258,479.43 and 54,000.15 is: 81,000.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,319.55 : 258,479.43 = 54,000.15 : x
  2. Step 2: Convert to fraction form
    172,319.55/258,479.43 = 54,000.15/x
  3. Step 3: Cross multiply
    172,319.55x = 258,479.43 × 54,000.15
  4. Step 4: Simplify right side
    172,319.55x = 13,957,927,991.91
  5. Step 5: Solve for x
    x = 13,957,927,991.91/172,319.55
  6. Step 6: Final answer
    x = 81,000.26

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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.