Home / 82,515.44-123,771.88-26,355.20

Finding the Fourth Proportional to 82,515.44, 123,771.88 and 26,355.20

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Solution

The fourth proportional to 82,515.44, 123,771.88 and 26,355.20 is: 39,532.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,515.44 : 123,771.88 = 26,355.20 : x
  2. Step 2: Convert to fraction form
    82,515.44/123,771.88 = 26,355.20/x
  3. Step 3: Cross multiply
    82,515.44x = 123,771.88 × 26,355.20
  4. Step 4: Simplify right side
    82,515.44x = 3,262,032,651.78
  5. Step 5: Solve for x
    x = 3,262,032,651.78/82,515.44
  6. Step 6: Final answer
    x = 39,532.39

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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.