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Finding the Fourth Proportional to 172,687.76, 259,030.68 and 54,367.76

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Solution

The fourth proportional to 172,687.76, 259,030.68 and 54,367.76 is: 81,551.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,687.76 : 259,030.68 = 54,367.76 : x
  2. Step 2: Convert to fraction form
    172,687.76/259,030.68 = 54,367.76/x
  3. Step 3: Cross multiply
    172,687.76x = 259,030.68 × 54,367.76
  4. Step 4: Simplify right side
    172,687.76x = 14,082,917,842.88
  5. Step 5: Solve for x
    x = 14,082,917,842.88/172,687.76
  6. Step 6: Final answer
    x = 81,551.34

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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.