Home / 54,146.90-81,212.15-18,613.62

Finding the Fourth Proportional to 54,146.90, 81,212.15 and 18,613.62

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Solution

The fourth proportional to 54,146.90, 81,212.15 and 18,613.62 is: 27,917.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,146.90 : 81,212.15 = 18,613.62 : x
  2. Step 2: Convert to fraction form
    54,146.90/81,212.15 = 18,613.62/x
  3. Step 3: Cross multiply
    54,146.90x = 81,212.15 × 18,613.62
  4. Step 4: Simplify right side
    54,146.90x = 1,511,652,146.02
  5. Step 5: Solve for x
    x = 1,511,652,146.02/54,146.90
  6. Step 6: Final answer
    x = 27,917.61

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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.