Home / 54,511.38-81,708.75-28,189.62

Finding the Fourth Proportional to 54,511.38, 81,708.75 and 28,189.62

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Solution

The fourth proportional to 54,511.38, 81,708.75 and 28,189.62 is: 42,254.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,511.38 : 81,708.75 = 28,189.62 : x
  2. Step 2: Convert to fraction form
    54,511.38/81,708.75 = 28,189.62/x
  3. Step 3: Cross multiply
    54,511.38x = 81,708.75 × 28,189.62
  4. Step 4: Simplify right side
    54,511.38x = 2,303,338,613.18
  5. Step 5: Solve for x
    x = 2,303,338,613.18/54,511.38
  6. Step 6: Final answer
    x = 42,254.27

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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.