Home / 51,571.60-71,162.44-31,421.14

Finding the Fourth Proportional to 51,571.60, 71,162.44 and 31,421.14

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Solution

The fourth proportional to 51,571.60, 71,162.44 and 31,421.14 is: 43,357.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,571.60 : 71,162.44 = 31,421.14 : x
  2. Step 2: Convert to fraction form
    51,571.60/71,162.44 = 31,421.14/x
  3. Step 3: Cross multiply
    51,571.60x = 71,162.44 × 31,421.14
  4. Step 4: Simplify right side
    51,571.60x = 2,236,004,989.98
  5. Step 5: Solve for x
    x = 2,236,004,989.98/51,571.60
  6. Step 6: Final answer
    x = 43,357.29

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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.