Home / 54,782.32-82,220.10-21,525.64

Finding the Fourth Proportional to 54,782.32, 82,220.10 and 21,525.64

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Solution

The fourth proportional to 54,782.32, 82,220.10 and 21,525.64 is: 32,306.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,782.32 : 82,220.10 = 21,525.64 : x
  2. Step 2: Convert to fraction form
    54,782.32/82,220.10 = 21,525.64/x
  3. Step 3: Cross multiply
    54,782.32x = 82,220.10 × 21,525.64
  4. Step 4: Simplify right side
    54,782.32x = 1,769,840,273.36
  5. Step 5: Solve for x
    x = 1,769,840,273.36/54,782.32
  6. Step 6: Final answer
    x = 32,306.78

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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.