Home / 51,979.12-71,732.49-31,847.10

Finding the Fourth Proportional to 51,979.12, 71,732.49 and 31,847.10

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Solution

The fourth proportional to 51,979.12, 71,732.49 and 31,847.10 is: 43,949.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,979.12 : 71,732.49 = 31,847.10 : x
  2. Step 2: Convert to fraction form
    51,979.12/71,732.49 = 31,847.10/x
  3. Step 3: Cross multiply
    51,979.12x = 71,732.49 × 31,847.10
  4. Step 4: Simplify right side
    51,979.12x = 2,284,471,782.28
  5. Step 5: Solve for x
    x = 2,284,471,782.28/51,979.12
  6. Step 6: Final answer
    x = 43,949.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.