Home / 172,372.20-258,558.30-54,043.35

Finding the Fourth Proportional to 172,372.20, 258,558.30 and 54,043.35

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Solution

The fourth proportional to 172,372.20, 258,558.30 and 54,043.35 is: 81,065.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,372.20 : 258,558.30 = 54,043.35 : x
  2. Step 2: Convert to fraction form
    172,372.20/258,558.30 = 54,043.35/x
  3. Step 3: Cross multiply
    172,372.20x = 258,558.30 × 54,043.35
  4. Step 4: Simplify right side
    172,372.20x = 13,973,356,702.31
  5. Step 5: Solve for x
    x = 13,973,356,702.31/172,372.20
  6. Step 6: Final answer
    x = 81,065.03

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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.