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Finding the Fourth Proportional to 81,407.40, 122,098.36 and 22,247.68

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Solution

The fourth proportional to 81,407.40, 122,098.36 and 22,247.68 is: 33,368.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,407.40 : 122,098.36 = 22,247.68 : x
  2. Step 2: Convert to fraction form
    81,407.40/122,098.36 = 22,247.68/x
  3. Step 3: Cross multiply
    81,407.40x = 122,098.36 × 22,247.68
  4. Step 4: Simplify right side
    81,407.40x = 2,716,405,241.80
  5. Step 5: Solve for x
    x = 2,716,405,241.80/81,407.40
  6. Step 6: Final answer
    x = 33,368.04

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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.