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Finding the Fourth Proportional to 172,356.88, 258,535.39 and 54,037.44

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Solution

The fourth proportional to 172,356.88, 258,535.39 and 54,037.44 is: 81,056.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,356.88 : 258,535.39 = 54,037.44 : x
  2. Step 2: Convert to fraction form
    172,356.88/258,535.39 = 54,037.44/x
  3. Step 3: Cross multiply
    172,356.88x = 258,535.39 × 54,037.44
  4. Step 4: Simplify right side
    172,356.88x = 13,970,591,338.89
  5. Step 5: Solve for x
    x = 13,970,591,338.89/172,356.88
  6. Step 6: Final answer
    x = 81,056.19

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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.