Home / 87,869.81-131,844.88-47,828.81

Finding the Fourth Proportional to 87,869.81, 131,844.88 and 47,828.81

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Solution

The fourth proportional to 87,869.81, 131,844.88 and 47,828.81 is: 71,765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,869.81 : 131,844.88 = 47,828.81 : x
  2. Step 2: Convert to fraction form
    87,869.81/131,844.88 = 47,828.81/x
  3. Step 3: Cross multiply
    87,869.81x = 131,844.88 × 47,828.81
  4. Step 4: Simplify right side
    87,869.81x = 6,305,984,104.39
  5. Step 5: Solve for x
    x = 6,305,984,104.39/87,869.81
  6. Step 6: Final answer
    x = 71,765.08

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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.