Home / 54,708.30-82,029.60-21,388.64

Finding the Fourth Proportional to 54,708.30, 82,029.60 and 21,388.64

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Solution

The fourth proportional to 54,708.30, 82,029.60 and 21,388.64 is: 32,070.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,708.30 : 82,029.60 = 21,388.64 : x
  2. Step 2: Convert to fraction form
    54,708.30/82,029.60 = 21,388.64/x
  3. Step 3: Cross multiply
    54,708.30x = 82,029.60 × 21,388.64
  4. Step 4: Simplify right side
    54,708.30x = 1,754,501,173.60
  5. Step 5: Solve for x
    x = 1,754,501,173.60/54,708.30
  6. Step 6: Final answer
    x = 32,070.11

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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.