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Finding the Fourth Proportional to 81,492.48, 122,234.64 and 22,327.20

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Solution

The fourth proportional to 81,492.48, 122,234.64 and 22,327.20 is: 33,489.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,492.48 : 122,234.64 = 22,327.20 : x
  2. Step 2: Convert to fraction form
    81,492.48/122,234.64 = 22,327.20/x
  3. Step 3: Cross multiply
    81,492.48x = 122,234.64 × 22,327.20
  4. Step 4: Simplify right side
    81,492.48x = 2,729,157,254.21
  5. Step 5: Solve for x
    x = 2,729,157,254.21/81,492.48
  6. Step 6: Final answer
    x = 33,489.68

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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.