Home / 80,811.93-121,176.39-43,403.48

Finding the Fourth Proportional to 80,811.93, 121,176.39 and 43,403.48

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Solution

The fourth proportional to 80,811.93, 121,176.39 and 43,403.48 is: 65,082.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,811.93 : 121,176.39 = 43,403.48 : x
  2. Step 2: Convert to fraction form
    80,811.93/121,176.39 = 43,403.48/x
  3. Step 3: Cross multiply
    80,811.93x = 121,176.39 × 43,403.48
  4. Step 4: Simplify right side
    80,811.93x = 5,259,477,019.84
  5. Step 5: Solve for x
    x = 5,259,477,019.84/80,811.93
  6. Step 6: Final answer
    x = 65,082.93

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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.