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Finding the Fourth Proportional to 172,320.99, 258,481.58 and 54,001.59

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Solution

The fourth proportional to 172,320.99, 258,481.58 and 54,001.59 is: 81,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,320.99 : 258,481.58 = 54,001.59 : x
  2. Step 2: Convert to fraction form
    172,320.99/258,481.58 = 54,001.59/x
  3. Step 3: Cross multiply
    172,320.99x = 258,481.58 × 54,001.59
  4. Step 4: Simplify right side
    172,320.99x = 13,958,416,305.71
  5. Step 5: Solve for x
    x = 13,958,416,305.71/172,320.99
  6. Step 6: Final answer
    x = 81,002.41

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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.