Home / 80,976.72-121,477.96-34,230

Finding the Fourth Proportional to 80,976.72, 121,477.96 and 34,230

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Solution

The fourth proportional to 80,976.72, 121,477.96 and 34,230 is: 51,350.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,976.72 : 121,477.96 = 34,230 : x
  2. Step 2: Convert to fraction form
    80,976.72/121,477.96 = 34,230/x
  3. Step 3: Cross multiply
    80,976.72x = 121,477.96 × 34,230
  4. Step 4: Simplify right side
    80,976.72x = 4,158,190,570.80
  5. Step 5: Solve for x
    x = 4,158,190,570.80/80,976.72
  6. Step 6: Final answer
    x = 51,350.44

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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.