Home / 45,628.80-68,436.36-14,460

Finding the Fourth Proportional to 45,628.80, 68,436.36 and 14,460

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Solution

The fourth proportional to 45,628.80, 68,436.36 and 14,460 is: 21,687.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,628.80 : 68,436.36 = 14,460 : x
  2. Step 2: Convert to fraction form
    45,628.80/68,436.36 = 14,460/x
  3. Step 3: Cross multiply
    45,628.80x = 68,436.36 × 14,460
  4. Step 4: Simplify right side
    45,628.80x = 989,589,765.60
  5. Step 5: Solve for x
    x = 989,589,765.60/45,628.80
  6. Step 6: Final answer
    x = 21,687.83

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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.