Home / 87,355.36-131,036.40-28,192

Finding the Fourth Proportional to 87,355.36, 131,036.40 and 28,192

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Solution

The fourth proportional to 87,355.36, 131,036.40 and 28,192 is: 42,289.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,355.36 : 131,036.40 = 28,192 : x
  2. Step 2: Convert to fraction form
    87,355.36/131,036.40 = 28,192/x
  3. Step 3: Cross multiply
    87,355.36x = 131,036.40 × 28,192
  4. Step 4: Simplify right side
    87,355.36x = 3,694,178,188.80
  5. Step 5: Solve for x
    x = 3,694,178,188.80/87,355.36
  6. Step 6: Final answer
    x = 42,289.08

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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.