Home / 45,678.40-68,517.60-16,129.60

Finding the Fourth Proportional to 45,678.40, 68,517.60 and 16,129.60

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Solution

The fourth proportional to 45,678.40, 68,517.60 and 16,129.60 is: 24,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,678.40 : 68,517.60 = 16,129.60 : x
  2. Step 2: Convert to fraction form
    45,678.40/68,517.60 = 16,129.60/x
  3. Step 3: Cross multiply
    45,678.40x = 68,517.60 × 16,129.60
  4. Step 4: Simplify right side
    45,678.40x = 1,105,161,480.96
  5. Step 5: Solve for x
    x = 1,105,161,480.96/45,678.40
  6. Step 6: Final answer
    x = 24,194.40

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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.