Home / 81,742.32-122,611.05-22,581.54

Finding the Fourth Proportional to 81,742.32, 122,611.05 and 22,581.54

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Solution

The fourth proportional to 81,742.32, 122,611.05 and 22,581.54 is: 33,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,742.32 : 122,611.05 = 22,581.54 : x
  2. Step 2: Convert to fraction form
    81,742.32/122,611.05 = 22,581.54/x
  3. Step 3: Cross multiply
    81,742.32x = 122,611.05 × 22,581.54
  4. Step 4: Simplify right side
    81,742.32x = 2,768,746,330.02
  5. Step 5: Solve for x
    x = 2,768,746,330.02/81,742.32
  6. Step 6: Final answer
    x = 33,871.64

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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.