Home / 45,382.95-68,076.65-12,103.31

Finding the Fourth Proportional to 45,382.95, 68,076.65 and 12,103.31

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Solution

The fourth proportional to 45,382.95, 68,076.65 and 12,103.31 is: 18,155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,382.95 : 68,076.65 = 12,103.31 : x
  2. Step 2: Convert to fraction form
    45,382.95/68,076.65 = 12,103.31/x
  3. Step 3: Cross multiply
    45,382.95x = 68,076.65 × 12,103.31
  4. Step 4: Simplify right side
    45,382.95x = 823,952,999.16
  5. Step 5: Solve for x
    x = 823,952,999.16/45,382.95
  6. Step 6: Final answer
    x = 18,155.56

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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.