Home / 81,928.32-122,893.17-25,767.12

Finding the Fourth Proportional to 81,928.32, 122,893.17 and 25,767.12

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Solution

The fourth proportional to 81,928.32, 122,893.17 and 25,767.12 is: 38,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,928.32 : 122,893.17 = 25,767.12 : x
  2. Step 2: Convert to fraction form
    81,928.32/122,893.17 = 25,767.12/x
  3. Step 3: Cross multiply
    81,928.32x = 122,893.17 × 25,767.12
  4. Step 4: Simplify right side
    81,928.32x = 3,166,603,058.57
  5. Step 5: Solve for x
    x = 3,166,603,058.57/81,928.32
  6. Step 6: Final answer
    x = 38,650.90

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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.