Home / 79,217.82-109,321.11-43,409.34

Finding the Fourth Proportional to 79,217.82, 109,321.11 and 43,409.34

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Solution

The fourth proportional to 79,217.82, 109,321.11 and 43,409.34 is: 59,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,217.82 : 109,321.11 = 43,409.34 : x
  2. Step 2: Convert to fraction form
    79,217.82/109,321.11 = 43,409.34/x
  3. Step 3: Cross multiply
    79,217.82x = 109,321.11 × 43,409.34
  4. Step 4: Simplify right side
    79,217.82x = 4,745,557,233.17
  5. Step 5: Solve for x
    x = 4,745,557,233.17/79,217.82
  6. Step 6: Final answer
    x = 59,905.17

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1.5x scale

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.