Home / 81,400.62-122,002.50-41,936.20

Finding the Fourth Proportional to 81,400.62, 122,002.50 and 41,936.20

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Solution

The fourth proportional to 81,400.62, 122,002.50 and 41,936.20 is: 62,853.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,400.62 : 122,002.50 = 41,936.20 : x
  2. Step 2: Convert to fraction form
    81,400.62/122,002.50 = 41,936.20/x
  3. Step 3: Cross multiply
    81,400.62x = 122,002.50 × 41,936.20
  4. Step 4: Simplify right side
    81,400.62x = 5,116,321,240.50
  5. Step 5: Solve for x
    x = 5,116,321,240.50/81,400.62
  6. Step 6: Final answer
    x = 62,853.59

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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.