Home / 54,331.48-81,508.74-16,890.64

Finding the Fourth Proportional to 54,331.48, 81,508.74 and 16,890.64

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Solution

The fourth proportional to 54,331.48, 81,508.74 and 16,890.64 is: 25,339.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,331.48 : 81,508.74 = 16,890.64 : x
  2. Step 2: Convert to fraction form
    54,331.48/81,508.74 = 16,890.64/x
  3. Step 3: Cross multiply
    54,331.48x = 81,508.74 × 16,890.64
  4. Step 4: Simplify right side
    54,331.48x = 1,376,734,784.19
  5. Step 5: Solve for x
    x = 1,376,734,784.19/54,331.48
  6. Step 6: Final answer
    x = 25,339.54

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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.