Home / 51,388.36-70,914.63-31,245.82

Finding the Fourth Proportional to 51,388.36, 70,914.63 and 31,245.82

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Solution

The fourth proportional to 51,388.36, 70,914.63 and 31,245.82 is: 43,118.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,388.36 : 70,914.63 = 31,245.82 : x
  2. Step 2: Convert to fraction form
    51,388.36/70,914.63 = 31,245.82/x
  3. Step 3: Cross multiply
    51,388.36x = 70,914.63 × 31,245.82
  4. Step 4: Simplify right side
    51,388.36x = 2,215,785,764.35
  5. Step 5: Solve for x
    x = 2,215,785,764.35/51,388.36
  6. Step 6: Final answer
    x = 43,118.44

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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.