Home / 71,965.54-107,939.82-19,370.86

Finding the Fourth Proportional to 71,965.54, 107,939.82 and 19,370.86

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Solution

The fourth proportional to 71,965.54, 107,939.82 and 19,370.86 is: 29,054.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,965.54 : 107,939.82 = 19,370.86 : x
  2. Step 2: Convert to fraction form
    71,965.54/107,939.82 = 19,370.86/x
  3. Step 3: Cross multiply
    71,965.54x = 107,939.82 × 19,370.86
  4. Step 4: Simplify right side
    71,965.54x = 2,090,887,141.65
  5. Step 5: Solve for x
    x = 2,090,887,141.65/71,965.54
  6. Step 6: Final answer
    x = 29,054.00

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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.