Home / 54,986.14-82,487.28-19,917.58

Finding the Fourth Proportional to 54,986.14, 82,487.28 and 19,917.58

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Solution

The fourth proportional to 54,986.14, 82,487.28 and 19,917.58 is: 29,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,986.14 : 82,487.28 = 19,917.58 : x
  2. Step 2: Convert to fraction form
    54,986.14/82,487.28 = 19,917.58/x
  3. Step 3: Cross multiply
    54,986.14x = 82,487.28 × 19,917.58
  4. Step 4: Simplify right side
    54,986.14x = 1,642,946,998.38
  5. Step 5: Solve for x
    x = 1,642,946,998.38/54,986.14
  6. Step 6: Final answer
    x = 29,879.29

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1.5x scale

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.