Home / 80,856.54-121,297.77-34,116.30

Finding the Fourth Proportional to 80,856.54, 121,297.77 and 34,116.30

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Solution

The fourth proportional to 80,856.54, 121,297.77 and 34,116.30 is: 51,179.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,856.54 : 121,297.77 = 34,116.30 : x
  2. Step 2: Convert to fraction form
    80,856.54/121,297.77 = 34,116.30/x
  3. Step 3: Cross multiply
    80,856.54x = 121,297.77 × 34,116.30
  4. Step 4: Simplify right side
    80,856.54x = 4,138,231,110.65
  5. Step 5: Solve for x
    x = 4,138,231,110.65/80,856.54
  6. Step 6: Final answer
    x = 51,179.92

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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.