Home / 71,255.10-106,879.38-39,864.36

Finding the Fourth Proportional to 71,255.10, 106,879.38 and 39,864.36

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Solution

The fourth proportional to 71,255.10, 106,879.38 and 39,864.36 is: 59,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,255.10 : 106,879.38 = 39,864.36 : x
  2. Step 2: Convert to fraction form
    71,255.10/106,879.38 = 39,864.36/x
  3. Step 3: Cross multiply
    71,255.10x = 106,879.38 × 39,864.36
  4. Step 4: Simplify right side
    71,255.10x = 4,260,678,080.90
  5. Step 5: Solve for x
    x = 4,260,678,080.90/71,255.10
  6. Step 6: Final answer
    x = 59,794.71

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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.