Home / 172,380.90-258,579.45-54,056.10

Finding the Fourth Proportional to 172,380.90, 258,579.45 and 54,056.10

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Solution

The fourth proportional to 172,380.90, 258,579.45 and 54,056.10 is: 81,086.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,380.90 : 258,579.45 = 54,056.10 : x
  2. Step 2: Convert to fraction form
    172,380.90/258,579.45 = 54,056.10/x
  3. Step 3: Cross multiply
    172,380.90x = 258,579.45 × 54,056.10
  4. Step 4: Simplify right side
    172,380.90x = 13,977,796,607.15
  5. Step 5: Solve for x
    x = 13,977,796,607.15/172,380.90
  6. Step 6: Final answer
    x = 81,086.69

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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.