Home / 84,578.36-126,879.48-34,665.68

Finding the Fourth Proportional to 84,578.36, 126,879.48 and 34,665.68

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Solution

The fourth proportional to 84,578.36, 126,879.48 and 34,665.68 is: 52,003.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,578.36 : 126,879.48 = 34,665.68 : x
  2. Step 2: Convert to fraction form
    84,578.36/126,879.48 = 34,665.68/x
  3. Step 3: Cross multiply
    84,578.36x = 126,879.48 × 34,665.68
  4. Step 4: Simplify right side
    84,578.36x = 4,398,363,452.25
  5. Step 5: Solve for x
    x = 4,398,363,452.25/84,578.36
  6. Step 6: Final answer
    x = 52,003.41

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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.