Home / 54,759.30-82,139.60-21,495.03

Finding the Fourth Proportional to 54,759.30, 82,139.60 and 21,495.03

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Solution

The fourth proportional to 54,759.30, 82,139.60 and 21,495.03 is: 32,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,759.30 : 82,139.60 = 21,495.03 : x
  2. Step 2: Convert to fraction form
    54,759.30/82,139.60 = 21,495.03/x
  3. Step 3: Cross multiply
    54,759.30x = 82,139.60 × 21,495.03
  4. Step 4: Simplify right side
    54,759.30x = 1,765,593,166.19
  5. Step 5: Solve for x
    x = 1,765,593,166.19/54,759.30
  6. Step 6: Final answer
    x = 32,242.80

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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.