Home / 77,425.06-116,137.37-21,265.22

Finding the Fourth Proportional to 77,425.06, 116,137.37 and 21,265.22

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Solution

The fourth proportional to 77,425.06, 116,137.37 and 21,265.22 is: 31,897.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,425.06 : 116,137.37 = 21,265.22 : x
  2. Step 2: Convert to fraction form
    77,425.06/116,137.37 = 21,265.22/x
  3. Step 3: Cross multiply
    77,425.06x = 116,137.37 × 21,265.22
  4. Step 4: Simplify right side
    77,425.06x = 2,469,686,723.27
  5. Step 5: Solve for x
    x = 2,469,686,723.27/77,425.06
  6. Step 6: Final answer
    x = 31,897.77

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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.