Home / 45,382.40-68,076.86-12,102.30

Finding the Fourth Proportional to 45,382.40, 68,076.86 and 12,102.30

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Solution

The fourth proportional to 45,382.40, 68,076.86 and 12,102.30 is: 18,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,382.40 : 68,076.86 = 12,102.30 : x
  2. Step 2: Convert to fraction form
    45,382.40/68,076.86 = 12,102.30/x
  3. Step 3: Cross multiply
    45,382.40x = 68,076.86 × 12,102.30
  4. Step 4: Simplify right side
    45,382.40x = 823,886,582.78
  5. Step 5: Solve for x
    x = 823,886,582.78/45,382.40
  6. Step 6: Final answer
    x = 18,154.32

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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.