Home / 80,738.75-121,127.70-25,334.75

Finding the Fourth Proportional to 80,738.75, 121,127.70 and 25,334.75

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Solution

The fourth proportional to 80,738.75, 121,127.70 and 25,334.75 is: 38,008.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,738.75 : 121,127.70 = 25,334.75 : x
  2. Step 2: Convert to fraction form
    80,738.75/121,127.70 = 25,334.75/x
  3. Step 3: Cross multiply
    80,738.75x = 121,127.70 × 25,334.75
  4. Step 4: Simplify right side
    80,738.75x = 3,068,739,997.58
  5. Step 5: Solve for x
    x = 3,068,739,997.58/80,738.75
  6. Step 6: Final answer
    x = 38,008.27

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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.