Home / 86,112.78-129,048.89-41,727.75

Finding the Fourth Proportional to 86,112.78, 129,048.89 and 41,727.75

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Solution

The fourth proportional to 86,112.78, 129,048.89 and 41,727.75 is: 62,533.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,112.78 : 129,048.89 = 41,727.75 : x
  2. Step 2: Convert to fraction form
    86,112.78/129,048.89 = 41,727.75/x
  3. Step 3: Cross multiply
    86,112.78x = 129,048.89 × 41,727.75
  4. Step 4: Simplify right side
    86,112.78x = 5,384,919,611.06
  5. Step 5: Solve for x
    x = 5,384,919,611.06/86,112.78
  6. Step 6: Final answer
    x = 62,533.34

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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.