Home / 90,872.48-136,299.00-31,709.27

Finding the Fourth Proportional to 90,872.48, 136,299.00 and 31,709.27

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Solution

The fourth proportional to 90,872.48, 136,299.00 and 31,709.27 is: 47,560.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,872.48 : 136,299.00 = 31,709.27 : x
  2. Step 2: Convert to fraction form
    90,872.48/136,299.00 = 31,709.27/x
  3. Step 3: Cross multiply
    90,872.48x = 136,299.00 × 31,709.27
  4. Step 4: Simplify right side
    90,872.48x = 4,321,942,251.39
  5. Step 5: Solve for x
    x = 4,321,942,251.39/90,872.48
  6. Step 6: Final answer
    x = 47,560.52

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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.