Home / 51,515.44-71,087.40-31,370.09

Finding the Fourth Proportional to 51,515.44, 71,087.40 and 31,370.09

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Solution

The fourth proportional to 51,515.44, 71,087.40 and 31,370.09 is: 43,288.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,515.44 : 71,087.40 = 31,370.09 : x
  2. Step 2: Convert to fraction form
    51,515.44/71,087.40 = 31,370.09/x
  3. Step 3: Cross multiply
    51,515.44x = 71,087.40 × 31,370.09
  4. Step 4: Simplify right side
    51,515.44x = 2,230,017,780.43
  5. Step 5: Solve for x
    x = 2,230,017,780.43/51,515.44
  6. Step 6: Final answer
    x = 43,288.34

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1.5x scale

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.