Home / 87,489.84-131,237.64-28,326

Finding the Fourth Proportional to 87,489.84, 131,237.64 and 28,326

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Solution

The fourth proportional to 87,489.84, 131,237.64 and 28,326 is: 42,489.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,489.84 : 131,237.64 = 28,326 : x
  2. Step 2: Convert to fraction form
    87,489.84/131,237.64 = 28,326/x
  3. Step 3: Cross multiply
    87,489.84x = 131,237.64 × 28,326
  4. Step 4: Simplify right side
    87,489.84x = 3,717,437,390.64
  5. Step 5: Solve for x
    x = 3,717,437,390.64/87,489.84
  6. Step 6: Final answer
    x = 42,489.93

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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.