Home / 79,217.31-109,322.46-43,409.61

Finding the Fourth Proportional to 79,217.31, 109,322.46 and 43,409.61

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Solution

The fourth proportional to 79,217.31, 109,322.46 and 43,409.61 is: 59,906.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,217.31 : 109,322.46 = 43,409.61 : x
  2. Step 2: Convert to fraction form
    79,217.31/109,322.46 = 43,409.61/x
  3. Step 3: Cross multiply
    79,217.31x = 109,322.46 × 43,409.61
  4. Step 4: Simplify right side
    79,217.31x = 4,745,645,352.84
  5. Step 5: Solve for x
    x = 4,745,645,352.84/79,217.31
  6. Step 6: Final answer
    x = 59,906.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.