Home / 95,089.20-131,083.32-72,388.62

Finding the Fourth Proportional to 95,089.20, 131,083.32 and 72,388.62

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Solution

The fourth proportional to 95,089.20, 131,083.32 and 72,388.62 is: 99,789.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,089.20 : 131,083.32 = 72,388.62 : x
  2. Step 2: Convert to fraction form
    95,089.20/131,083.32 = 72,388.62/x
  3. Step 3: Cross multiply
    95,089.20x = 131,083.32 × 72,388.62
  4. Step 4: Simplify right side
    95,089.20x = 9,488,940,639.82
  5. Step 5: Solve for x
    x = 9,488,940,639.82/95,089.20
  6. Step 6: Final answer
    x = 99,789.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.