Home / 81,679.32-122,518.86-25,524.24

Finding the Fourth Proportional to 81,679.32, 122,518.86 and 25,524.24

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Solution

The fourth proportional to 81,679.32, 122,518.86 and 25,524.24 is: 38,286.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,679.32 : 122,518.86 = 25,524.24 : x
  2. Step 2: Convert to fraction form
    81,679.32/122,518.86 = 25,524.24/x
  3. Step 3: Cross multiply
    81,679.32x = 122,518.86 × 25,524.24
  4. Step 4: Simplify right side
    81,679.32x = 3,127,200,787.17
  5. Step 5: Solve for x
    x = 3,127,200,787.17/81,679.32
  6. Step 6: Final answer
    x = 38,286.32

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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.