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Finding the Fourth Proportional to 45,669.22, 68,502.21 and 12,394.42

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Solution

The fourth proportional to 45,669.22, 68,502.21 and 12,394.42 is: 18,591.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,669.22 : 68,502.21 = 12,394.42 : x
  2. Step 2: Convert to fraction form
    45,669.22/68,502.21 = 12,394.42/x
  3. Step 3: Cross multiply
    45,669.22x = 68,502.21 × 12,394.42
  4. Step 4: Simplify right side
    45,669.22x = 849,045,161.67
  5. Step 5: Solve for x
    x = 849,045,161.67/45,669.22
  6. Step 6: Final answer
    x = 18,591.19

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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.