Home / 45,943.54-68,920.08-12,663.61

Finding the Fourth Proportional to 45,943.54, 68,920.08 and 12,663.61

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Solution

The fourth proportional to 45,943.54, 68,920.08 and 12,663.61 is: 18,996.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,943.54 : 68,920.08 = 12,663.61 : x
  2. Step 2: Convert to fraction form
    45,943.54/68,920.08 = 12,663.61/x
  3. Step 3: Cross multiply
    45,943.54x = 68,920.08 × 12,663.61
  4. Step 4: Simplify right side
    45,943.54x = 872,777,052.95
  5. Step 5: Solve for x
    x = 872,777,052.95/45,943.54
  6. Step 6: Final answer
    x = 18,996.73

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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.