Home / 89,231.80-133,745.94-42,418.36

Finding the Fourth Proportional to 89,231.80, 133,745.94 and 42,418.36

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Solution

The fourth proportional to 89,231.80, 133,745.94 and 42,418.36 is: 63,579.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,231.80 : 133,745.94 = 42,418.36 : x
  2. Step 2: Convert to fraction form
    89,231.80/133,745.94 = 42,418.36/x
  3. Step 3: Cross multiply
    89,231.80x = 133,745.94 × 42,418.36
  4. Step 4: Simplify right side
    89,231.80x = 5,673,283,431.46
  5. Step 5: Solve for x
    x = 5,673,283,431.46/89,231.80
  6. Step 6: Final answer
    x = 63,579.17

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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.