Home / 45,405.10-68,107.65-12,125.29

Finding the Fourth Proportional to 45,405.10, 68,107.65 and 12,125.29

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Solution

The fourth proportional to 45,405.10, 68,107.65 and 12,125.29 is: 18,187.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,405.10 : 68,107.65 = 12,125.29 : x
  2. Step 2: Convert to fraction form
    45,405.10/68,107.65 = 12,125.29/x
  3. Step 3: Cross multiply
    45,405.10x = 68,107.65 × 12,125.29
  4. Step 4: Simplify right side
    45,405.10x = 825,825,007.47
  5. Step 5: Solve for x
    x = 825,825,007.47/45,405.10
  6. Step 6: Final answer
    x = 18,187.94

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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.