Home / 76,694.69-115,058.57-38,247.20

Finding the Fourth Proportional to 76,694.69, 115,058.57 and 38,247.20

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Solution

The fourth proportional to 76,694.69, 115,058.57 and 38,247.20 is: 57,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,694.69 : 115,058.57 = 38,247.20 : x
  2. Step 2: Convert to fraction form
    76,694.69/115,058.57 = 38,247.20/x
  3. Step 3: Cross multiply
    76,694.69x = 115,058.57 × 38,247.20
  4. Step 4: Simplify right side
    76,694.69x = 4,400,668,456.66
  5. Step 5: Solve for x
    x = 4,400,668,456.66/76,694.69
  6. Step 6: Final answer
    x = 57,379.05

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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.