Home / 82,419.20-123,638.46-26,239.64

Finding the Fourth Proportional to 82,419.20, 123,638.46 and 26,239.64

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Solution

The fourth proportional to 82,419.20, 123,638.46 and 26,239.64 is: 39,362.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,419.20 : 123,638.46 = 26,239.64 : x
  2. Step 2: Convert to fraction form
    82,419.20/123,638.46 = 26,239.64/x
  3. Step 3: Cross multiply
    82,419.20x = 123,638.46 × 26,239.64
  4. Step 4: Simplify right side
    82,419.20x = 3,244,228,680.55
  5. Step 5: Solve for x
    x = 3,244,228,680.55/82,419.20
  6. Step 6: Final answer
    x = 39,362.54

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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.