Home / 80,376.48-110,942.64-48,540

Finding the Fourth Proportional to 80,376.48, 110,942.64 and 48,540

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Solution

The fourth proportional to 80,376.48, 110,942.64 and 48,540 is: 66,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,376.48 : 110,942.64 = 48,540 : x
  2. Step 2: Convert to fraction form
    80,376.48/110,942.64 = 48,540/x
  3. Step 3: Cross multiply
    80,376.48x = 110,942.64 × 48,540
  4. Step 4: Simplify right side
    80,376.48x = 5,385,155,745.60
  5. Step 5: Solve for x
    x = 5,385,155,745.60/80,376.48
  6. Step 6: Final answer
    x = 66,999.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.