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Finding the Fourth Proportional to 45,762.37, 68,636.50 and 12,485.14

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Solution

The fourth proportional to 45,762.37, 68,636.50 and 12,485.14 is: 18,725.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,762.37 : 68,636.50 = 12,485.14 : x
  2. Step 2: Convert to fraction form
    45,762.37/68,636.50 = 12,485.14/x
  3. Step 3: Cross multiply
    45,762.37x = 68,636.50 × 12,485.14
  4. Step 4: Simplify right side
    45,762.37x = 856,936,311.61
  5. Step 5: Solve for x
    x = 856,936,311.61/45,762.37
  6. Step 6: Final answer
    x = 18,725.79

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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.