Home / 80,816.76-121,227.12-27,508.64

Finding the Fourth Proportional to 80,816.76, 121,227.12 and 27,508.64

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Solution

The fourth proportional to 80,816.76, 121,227.12 and 27,508.64 is: 41,263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,816.76 : 121,227.12 = 27,508.64 : x
  2. Step 2: Convert to fraction form
    80,816.76/121,227.12 = 27,508.64/x
  3. Step 3: Cross multiply
    80,816.76x = 121,227.12 × 27,508.64
  4. Step 4: Simplify right side
    80,816.76x = 3,334,792,596.18
  5. Step 5: Solve for x
    x = 3,334,792,596.18/80,816.76
  6. Step 6: Final answer
    x = 41,263.63

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1.5x scale

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.