Home / 54,729.37-82,078.21-18,702.19

Finding the Fourth Proportional to 54,729.37, 82,078.21 and 18,702.19

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Solution

The fourth proportional to 54,729.37, 82,078.21 and 18,702.19 is: 28,047.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,729.37 : 82,078.21 = 18,702.19 : x
  2. Step 2: Convert to fraction form
    54,729.37/82,078.21 = 18,702.19/x
  3. Step 3: Cross multiply
    54,729.37x = 82,078.21 × 18,702.19
  4. Step 4: Simplify right side
    54,729.37x = 1,535,042,404.26
  5. Step 5: Solve for x
    x = 1,535,042,404.26/54,729.37
  6. Step 6: Final answer
    x = 28,047.87

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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.