Home / 81,636.99-122,459.73-22,471.35

Finding the Fourth Proportional to 81,636.99, 122,459.73 and 22,471.35

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Solution

The fourth proportional to 81,636.99, 122,459.73 and 22,471.35 is: 33,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,636.99 : 122,459.73 = 22,471.35 : x
  2. Step 2: Convert to fraction form
    81,636.99/122,459.73 = 22,471.35/x
  3. Step 3: Cross multiply
    81,636.99x = 122,459.73 × 22,471.35
  4. Step 4: Simplify right side
    81,636.99x = 2,751,835,453.74
  5. Step 5: Solve for x
    x = 2,751,835,453.74/81,636.99
  6. Step 6: Final answer
    x = 33,708.19

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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.