Home / 172,410.04-258,624.78-54,078.76

Finding the Fourth Proportional to 172,410.04, 258,624.78 and 54,078.76

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Solution

The fourth proportional to 172,410.04, 258,624.78 and 54,078.76 is: 81,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,410.04 : 258,624.78 = 54,078.76 : x
  2. Step 2: Convert to fraction form
    172,410.04/258,624.78 = 54,078.76/x
  3. Step 3: Cross multiply
    172,410.04x = 258,624.78 × 54,078.76
  4. Step 4: Simplify right side
    172,410.04x = 13,986,107,407.67
  5. Step 5: Solve for x
    x = 13,986,107,407.67/172,410.04
  6. Step 6: Final answer
    x = 81,121.19

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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.