Home / 172,529.10-258,793.65-54,212.40

Finding the Fourth Proportional to 172,529.10, 258,793.65 and 54,212.40

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Solution

The fourth proportional to 172,529.10, 258,793.65 and 54,212.40 is: 81,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,529.10 : 258,793.65 = 54,212.40 : x
  2. Step 2: Convert to fraction form
    172,529.10/258,793.65 = 54,212.40/x
  3. Step 3: Cross multiply
    172,529.10x = 258,793.65 × 54,212.40
  4. Step 4: Simplify right side
    172,529.10x = 14,029,824,871.26
  5. Step 5: Solve for x
    x = 14,029,824,871.26/172,529.10
  6. Step 6: Final answer
    x = 81,318.60

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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.