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Finding the Fourth Proportional to 81,484.55, 122,226.93 and 22,320.74

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Solution

The fourth proportional to 81,484.55, 122,226.93 and 22,320.74 is: 33,481.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,484.55 : 122,226.93 = 22,320.74 : x
  2. Step 2: Convert to fraction form
    81,484.55/122,226.93 = 22,320.74/x
  3. Step 3: Cross multiply
    81,484.55x = 122,226.93 × 22,320.74
  4. Step 4: Simplify right side
    81,484.55x = 2,728,194,914.39
  5. Step 5: Solve for x
    x = 2,728,194,914.39/81,484.55
  6. Step 6: Final answer
    x = 33,481.13

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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.