Home / 87,423.72-131,043.78-47,969.16

Finding the Fourth Proportional to 87,423.72, 131,043.78 and 47,969.16

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Solution

The fourth proportional to 87,423.72, 131,043.78 and 47,969.16 is: 71,903.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,423.72 : 131,043.78 = 47,969.16 : x
  2. Step 2: Convert to fraction form
    87,423.72/131,043.78 = 47,969.16/x
  3. Step 3: Cross multiply
    87,423.72x = 131,043.78 × 47,969.16
  4. Step 4: Simplify right side
    87,423.72x = 6,286,060,049.82
  5. Step 5: Solve for x
    x = 6,286,060,049.82/87,423.72
  6. Step 6: Final answer
    x = 71,903.37

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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.