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Finding the Fourth Proportional to 172,717.76, 259,085.88 and 54,398.32

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Solution

The fourth proportional to 172,717.76, 259,085.88 and 54,398.32 is: 81,600.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,717.76 : 259,085.88 = 54,398.32 : x
  2. Step 2: Convert to fraction form
    172,717.76/259,085.88 = 54,398.32/x
  3. Step 3: Cross multiply
    172,717.76x = 259,085.88 × 54,398.32
  4. Step 4: Simplify right side
    172,717.76x = 14,093,836,607.72
  5. Step 5: Solve for x
    x = 14,093,836,607.72/172,717.76
  6. Step 6: Final answer
    x = 81,600.39

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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.