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Finding the Fourth Proportional to 45,236, 67,855.92 and 12,404

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Solution

The fourth proportional to 45,236, 67,855.92 and 12,404 is: 18,606.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,236 : 67,855.92 = 12,404 : x
  2. Step 2: Convert to fraction form
    45,236/67,855.92 = 12,404/x
  3. Step 3: Cross multiply
    45,236x = 67,855.92 × 12,404
  4. Step 4: Simplify right side
    45,236x = 841,684,831.68
  5. Step 5: Solve for x
    x = 841,684,831.68/45,236
  6. Step 6: Final answer
    x = 18,606.53

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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.