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Finding the Fourth Proportional to 45,677.67, 68,513.74 and 12,396.99

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Solution

The fourth proportional to 45,677.67, 68,513.74 and 12,396.99 is: 18,594.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,677.67 : 68,513.74 = 12,396.99 : x
  2. Step 2: Convert to fraction form
    45,677.67/68,513.74 = 12,396.99/x
  3. Step 3: Cross multiply
    45,677.67x = 68,513.74 × 12,396.99
  4. Step 4: Simplify right side
    45,677.67x = 849,364,149.64
  5. Step 5: Solve for x
    x = 849,364,149.64/45,677.67
  6. Step 6: Final answer
    x = 18,594.73

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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.