Home / 84,299.68-126,520.46-42,167.12

Finding the Fourth Proportional to 84,299.68, 126,520.46 and 42,167.12

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Solution

The fourth proportional to 84,299.68, 126,520.46 and 42,167.12 is: 63,286.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,299.68 : 126,520.46 = 42,167.12 : x
  2. Step 2: Convert to fraction form
    84,299.68/126,520.46 = 42,167.12/x
  3. Step 3: Cross multiply
    84,299.68x = 126,520.46 × 42,167.12
  4. Step 4: Simplify right side
    84,299.68x = 5,335,003,208.44
  5. Step 5: Solve for x
    x = 5,335,003,208.44/84,299.68
  6. Step 6: Final answer
    x = 63,286.17

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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.