Home / 81,536.49-122,298.26-28,939.14

Finding the Fourth Proportional to 81,536.49, 122,298.26 and 28,939.14

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Solution

The fourth proportional to 81,536.49, 122,298.26 and 28,939.14 is: 43,406.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,536.49 : 122,298.26 = 28,939.14 : x
  2. Step 2: Convert to fraction form
    81,536.49/122,298.26 = 28,939.14/x
  3. Step 3: Cross multiply
    81,536.49x = 122,298.26 × 28,939.14
  4. Step 4: Simplify right side
    81,536.49x = 3,539,206,323.20
  5. Step 5: Solve for x
    x = 3,539,206,323.20/81,536.49
  6. Step 6: Final answer
    x = 43,406.41

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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.