Home / 47,991.52-66,236.88-31,016.80

Finding the Fourth Proportional to 47,991.52, 66,236.88 and 31,016.80

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Solution

The fourth proportional to 47,991.52, 66,236.88 and 31,016.80 is: 42,808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,991.52 : 66,236.88 = 31,016.80 : x
  2. Step 2: Convert to fraction form
    47,991.52/66,236.88 = 31,016.80/x
  3. Step 3: Cross multiply
    47,991.52x = 66,236.88 × 31,016.80
  4. Step 4: Simplify right side
    47,991.52x = 2,054,456,059.58
  5. Step 5: Solve for x
    x = 2,054,456,059.58/47,991.52
  6. Step 6: Final answer
    x = 42,808.73

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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.