Home / 72,769.08-109,023.77-39,467.91

Finding the Fourth Proportional to 72,769.08, 109,023.77 and 39,467.91

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Solution

The fourth proportional to 72,769.08, 109,023.77 and 39,467.91 is: 59,131.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,769.08 : 109,023.77 = 39,467.91 : x
  2. Step 2: Convert to fraction form
    72,769.08/109,023.77 = 39,467.91/x
  3. Step 3: Cross multiply
    72,769.08x = 109,023.77 × 39,467.91
  4. Step 4: Simplify right side
    72,769.08x = 4,302,940,342.22
  5. Step 5: Solve for x
    x = 4,302,940,342.22/72,769.08
  6. Step 6: Final answer
    x = 59,131.44

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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.