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Finding the Fourth Proportional to 75,245.56, 112,887.88 and 21,936.29

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Solution

The fourth proportional to 75,245.56, 112,887.88 and 21,936.29 is: 32,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,245.56 : 112,887.88 = 21,936.29 : x
  2. Step 2: Convert to fraction form
    75,245.56/112,887.88 = 21,936.29/x
  3. Step 3: Cross multiply
    75,245.56x = 112,887.88 × 21,936.29
  4. Step 4: Simplify right side
    75,245.56x = 2,476,340,653.89
  5. Step 5: Solve for x
    x = 2,476,340,653.89/75,245.56
  6. Step 6: Final answer
    x = 32,910.12

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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.