Home / 51,939.36-71,670.15-31,808.03

Finding the Fourth Proportional to 51,939.36, 71,670.15 and 31,808.03

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Solution

The fourth proportional to 51,939.36, 71,670.15 and 31,808.03 is: 43,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,939.36 : 71,670.15 = 31,808.03 : x
  2. Step 2: Convert to fraction form
    51,939.36/71,670.15 = 31,808.03/x
  3. Step 3: Cross multiply
    51,939.36x = 71,670.15 × 31,808.03
  4. Step 4: Simplify right side
    51,939.36x = 2,279,685,922.95
  5. Step 5: Solve for x
    x = 2,279,685,922.95/51,939.36
  6. Step 6: Final answer
    x = 43,891.30

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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.