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Finding the Fourth Proportional to 172,049.40, 258,073.98 and 53,730.88

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Solution

The fourth proportional to 172,049.40, 258,073.98 and 53,730.88 is: 80,596.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,049.40 : 258,073.98 = 53,730.88 : x
  2. Step 2: Convert to fraction form
    172,049.40/258,073.98 = 53,730.88/x
  3. Step 3: Cross multiply
    172,049.40x = 258,073.98 × 53,730.88
  4. Step 4: Simplify right side
    172,049.40x = 13,866,542,050.50
  5. Step 5: Solve for x
    x = 13,866,542,050.50/172,049.40
  6. Step 6: Final answer
    x = 80,596.28

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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.