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Finding the Fourth Proportional to 80,773.84, 121,085.48 and 27,429.34

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Solution

The fourth proportional to 80,773.84, 121,085.48 and 27,429.34 is: 41,118.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,773.84 : 121,085.48 = 27,429.34 : x
  2. Step 2: Convert to fraction form
    80,773.84/121,085.48 = 27,429.34/x
  3. Step 3: Cross multiply
    80,773.84x = 121,085.48 × 27,429.34
  4. Step 4: Simplify right side
    80,773.84x = 3,321,294,799.98
  5. Step 5: Solve for x
    x = 3,321,294,799.98/80,773.84
  6. Step 6: Final answer
    x = 41,118.45

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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.