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Finding the Fourth Proportional to 88,481.35, 132,720.40 and 21,921.63

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Solution

The fourth proportional to 88,481.35, 132,720.40 and 21,921.63 is: 32,882.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,481.35 : 132,720.40 = 21,921.63 : x
  2. Step 2: Convert to fraction form
    88,481.35/132,720.40 = 21,921.63/x
  3. Step 3: Cross multiply
    88,481.35x = 132,720.40 × 21,921.63
  4. Step 4: Simplify right side
    88,481.35x = 2,909,447,502.25
  5. Step 5: Solve for x
    x = 2,909,447,502.25/88,481.35
  6. Step 6: Final answer
    x = 32,882.04

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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.