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Finding the Fourth Proportional to 45,207.73, 67,811.05 and 21,817.63

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Solution

The fourth proportional to 45,207.73, 67,811.05 and 21,817.63 is: 32,726.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,207.73 : 67,811.05 = 21,817.63 : x
  2. Step 2: Convert to fraction form
    45,207.73/67,811.05 = 21,817.63/x
  3. Step 3: Cross multiply
    45,207.73x = 67,811.05 × 21,817.63
  4. Step 4: Simplify right side
    45,207.73x = 1,479,476,398.81
  5. Step 5: Solve for x
    x = 1,479,476,398.81/45,207.73
  6. Step 6: Final answer
    x = 32,726.18

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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.