Home / 81,056.22-121,588.92-21,896.58

Finding the Fourth Proportional to 81,056.22, 121,588.92 and 21,896.58

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Solution

The fourth proportional to 81,056.22, 121,588.92 and 21,896.58 is: 32,846.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,056.22 : 121,588.92 = 21,896.58 : x
  2. Step 2: Convert to fraction form
    81,056.22/121,588.92 = 21,896.58/x
  3. Step 3: Cross multiply
    81,056.22x = 121,588.92 × 21,896.58
  4. Step 4: Simplify right side
    81,056.22x = 2,662,381,513.89
  5. Step 5: Solve for x
    x = 2,662,381,513.89/81,056.22
  6. Step 6: Final answer
    x = 32,846.11

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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.