Home / 71,125.32-106,716.69-31,655.44

Finding the Fourth Proportional to 71,125.32, 106,716.69 and 31,655.44

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Solution

The fourth proportional to 71,125.32, 106,716.69 and 31,655.44 is: 47,495.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,125.32 : 106,716.69 = 31,655.44 : x
  2. Step 2: Convert to fraction form
    71,125.32/106,716.69 = 31,655.44/x
  3. Step 3: Cross multiply
    71,125.32x = 106,716.69 × 31,655.44
  4. Step 4: Simplify right side
    71,125.32x = 3,378,163,910.69
  5. Step 5: Solve for x
    x = 3,378,163,910.69/71,125.32
  6. Step 6: Final answer
    x = 47,495.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.