Home / 45,930.45-68,896.04-12,652.35

Finding the Fourth Proportional to 45,930.45, 68,896.04 and 12,652.35

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Solution

The fourth proportional to 45,930.45, 68,896.04 and 12,652.35 is: 18,978.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,930.45 : 68,896.04 = 12,652.35 : x
  2. Step 2: Convert to fraction form
    45,930.45/68,896.04 = 12,652.35/x
  3. Step 3: Cross multiply
    45,930.45x = 68,896.04 × 12,652.35
  4. Step 4: Simplify right side
    45,930.45x = 871,696,811.69
  5. Step 5: Solve for x
    x = 871,696,811.69/45,930.45
  6. Step 6: Final answer
    x = 18,978.63

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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.