Home / 89,042.36-133,578.11-42,279.44

Finding the Fourth Proportional to 89,042.36, 133,578.11 and 42,279.44

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Solution

The fourth proportional to 89,042.36, 133,578.11 and 42,279.44 is: 63,426.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,042.36 : 133,578.11 = 42,279.44 : x
  2. Step 2: Convert to fraction form
    89,042.36/133,578.11 = 42,279.44/x
  3. Step 3: Cross multiply
    89,042.36x = 133,578.11 × 42,279.44
  4. Step 4: Simplify right side
    89,042.36x = 5,647,607,124.87
  5. Step 5: Solve for x
    x = 5,647,607,124.87/89,042.36
  6. Step 6: Final answer
    x = 63,426.08

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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.