Home / 80,724.02-121,086.03-21,556.56

Finding the Fourth Proportional to 80,724.02, 121,086.03 and 21,556.56

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Solution

The fourth proportional to 80,724.02, 121,086.03 and 21,556.56 is: 32,334.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,724.02 : 121,086.03 = 21,556.56 : x
  2. Step 2: Convert to fraction form
    80,724.02/121,086.03 = 21,556.56/x
  3. Step 3: Cross multiply
    80,724.02x = 121,086.03 × 21,556.56
  4. Step 4: Simplify right side
    80,724.02x = 2,610,198,270.86
  5. Step 5: Solve for x
    x = 2,610,198,270.86/80,724.02
  6. Step 6: Final answer
    x = 32,334.84

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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.