Home / 86,934.87-130,400.90-27,770.15

Finding the Fourth Proportional to 86,934.87, 130,400.90 and 27,770.15

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Solution

The fourth proportional to 86,934.87, 130,400.90 and 27,770.15 is: 41,654.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,934.87 : 130,400.90 = 27,770.15 : x
  2. Step 2: Convert to fraction form
    86,934.87/130,400.90 = 27,770.15/x
  3. Step 3: Cross multiply
    86,934.87x = 130,400.90 × 27,770.15
  4. Step 4: Simplify right side
    86,934.87x = 3,621,252,553.14
  5. Step 5: Solve for x
    x = 3,621,252,553.14/86,934.87
  6. Step 6: Final answer
    x = 41,654.78

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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.