Home / 81,412.34-122,111.60-25,251.24

Finding the Fourth Proportional to 81,412.34, 122,111.60 and 25,251.24

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Solution

The fourth proportional to 81,412.34, 122,111.60 and 25,251.24 is: 37,874.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,412.34 : 122,111.60 = 25,251.24 : x
  2. Step 2: Convert to fraction form
    81,412.34/122,111.60 = 25,251.24/x
  3. Step 3: Cross multiply
    81,412.34x = 122,111.60 × 25,251.24
  4. Step 4: Simplify right side
    81,412.34x = 3,083,469,792.08
  5. Step 5: Solve for x
    x = 3,083,469,792.08/81,412.34
  6. Step 6: Final answer
    x = 37,874.72

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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.