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Finding the Fourth Proportional to 172,805.10, 259,244.10 and 54,488.40

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Solution

The fourth proportional to 172,805.10, 259,244.10 and 54,488.40 is: 81,744.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,805.10 : 259,244.10 = 54,488.40 : x
  2. Step 2: Convert to fraction form
    172,805.10/259,244.10 = 54,488.40/x
  3. Step 3: Cross multiply
    172,805.10x = 259,244.10 × 54,488.40
  4. Step 4: Simplify right side
    172,805.10x = 14,125,796,218.44
  5. Step 5: Solve for x
    x = 14,125,796,218.44/172,805.10
  6. Step 6: Final answer
    x = 81,744.09

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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.