Home / 54,805.40-82,208.10-38,216.60

Finding the Fourth Proportional to 54,805.40, 82,208.10 and 38,216.60

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Solution

The fourth proportional to 54,805.40, 82,208.10 and 38,216.60 is: 57,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,805.40 : 82,208.10 = 38,216.60 : x
  2. Step 2: Convert to fraction form
    54,805.40/82,208.10 = 38,216.60/x
  3. Step 3: Cross multiply
    54,805.40x = 82,208.10 × 38,216.60
  4. Step 4: Simplify right side
    54,805.40x = 3,141,714,074.46
  5. Step 5: Solve for x
    x = 3,141,714,074.46/54,805.40
  6. Step 6: Final answer
    x = 57,324.90

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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.