Home / 81,110.44-121,665.66-36,728.92

Finding the Fourth Proportional to 81,110.44, 121,665.66 and 36,728.92

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Solution

The fourth proportional to 81,110.44, 121,665.66 and 36,728.92 is: 55,093.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,110.44 : 121,665.66 = 36,728.92 : x
  2. Step 2: Convert to fraction form
    81,110.44/121,665.66 = 36,728.92/x
  3. Step 3: Cross multiply
    81,110.44x = 121,665.66 × 36,728.92
  4. Step 4: Simplify right side
    81,110.44x = 4,468,648,292.89
  5. Step 5: Solve for x
    x = 4,468,648,292.89/81,110.44
  6. Step 6: Final answer
    x = 55,093.38

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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.