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Finding the Fourth Proportional to 80,996.80, 121,494.48 and 21,827.56

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Solution

The fourth proportional to 80,996.80, 121,494.48 and 21,827.56 is: 32,741.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,996.80 : 121,494.48 = 21,827.56 : x
  2. Step 2: Convert to fraction form
    80,996.80/121,494.48 = 21,827.56/x
  3. Step 3: Cross multiply
    80,996.80x = 121,494.48 × 21,827.56
  4. Step 4: Simplify right side
    80,996.80x = 2,651,928,051.87
  5. Step 5: Solve for x
    x = 2,651,928,051.87/80,996.80
  6. Step 6: Final answer
    x = 32,741.15

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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.