Home / 55,043.74-82,539.56-21,325.54

Finding the Fourth Proportional to 55,043.74, 82,539.56 and 21,325.54

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Solution

The fourth proportional to 55,043.74, 82,539.56 and 21,325.54 is: 31,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,043.74 : 82,539.56 = 21,325.54 : x
  2. Step 2: Convert to fraction form
    55,043.74/82,539.56 = 21,325.54/x
  3. Step 3: Cross multiply
    55,043.74x = 82,539.56 × 21,325.54
  4. Step 4: Simplify right side
    55,043.74x = 1,760,200,688.36
  5. Step 5: Solve for x
    x = 1,760,200,688.36/55,043.74
  6. Step 6: Final answer
    x = 31,978.22

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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.