Home / 39,879.20-59,721.60-29,964.80

Finding the Fourth Proportional to 39,879.20, 59,721.60 and 29,964.80

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Solution

The fourth proportional to 39,879.20, 59,721.60 and 29,964.80 is: 44,874.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,879.20 : 59,721.60 = 29,964.80 : x
  2. Step 2: Convert to fraction form
    39,879.20/59,721.60 = 29,964.80/x
  3. Step 3: Cross multiply
    39,879.20x = 59,721.60 × 29,964.80
  4. Step 4: Simplify right side
    39,879.20x = 1,789,545,799.68
  5. Step 5: Solve for x
    x = 1,789,545,799.68/39,879.20
  6. Step 6: Final answer
    x = 44,874.16

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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.