Home / 54,811.40-82,238.70-21,525.80

Finding the Fourth Proportional to 54,811.40, 82,238.70 and 21,525.80

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Solution

The fourth proportional to 54,811.40, 82,238.70 and 21,525.80 is: 32,297.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,811.40 : 82,238.70 = 21,525.80 : x
  2. Step 2: Convert to fraction form
    54,811.40/82,238.70 = 21,525.80/x
  3. Step 3: Cross multiply
    54,811.40x = 82,238.70 × 21,525.80
  4. Step 4: Simplify right side
    54,811.40x = 1,770,253,808.46
  5. Step 5: Solve for x
    x = 1,770,253,808.46/54,811.40
  6. Step 6: Final answer
    x = 32,297.18

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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.