Home / 51,172.94-70,599.92-31,015.28

Finding the Fourth Proportional to 51,172.94, 70,599.92 and 31,015.28

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Solution

The fourth proportional to 51,172.94, 70,599.92 and 31,015.28 is: 42,789.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,172.94 : 70,599.92 = 31,015.28 : x
  2. Step 2: Convert to fraction form
    51,172.94/70,599.92 = 31,015.28/x
  3. Step 3: Cross multiply
    51,172.94x = 70,599.92 × 31,015.28
  4. Step 4: Simplify right side
    51,172.94x = 2,189,676,286.78
  5. Step 5: Solve for x
    x = 2,189,676,286.78/51,172.94
  6. Step 6: Final answer
    x = 42,789.73

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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.