Home / 86,768.82-130,202.24-40,021.70

Finding the Fourth Proportional to 86,768.82, 130,202.24 and 40,021.70

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Solution

The fourth proportional to 86,768.82, 130,202.24 and 40,021.70 is: 60,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,768.82 : 130,202.24 = 40,021.70 : x
  2. Step 2: Convert to fraction form
    86,768.82/130,202.24 = 40,021.70/x
  3. Step 3: Cross multiply
    86,768.82x = 130,202.24 × 40,021.70
  4. Step 4: Simplify right side
    86,768.82x = 5,210,914,137.49
  5. Step 5: Solve for x
    x = 5,210,914,137.49/86,768.82
  6. Step 6: Final answer
    x = 60,055.15

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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.