Home / 81,300.38-121,952.73-22,137.26

Finding the Fourth Proportional to 81,300.38, 121,952.73 and 22,137.26

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Solution

The fourth proportional to 81,300.38, 121,952.73 and 22,137.26 is: 33,206.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,300.38 : 121,952.73 = 22,137.26 : x
  2. Step 2: Convert to fraction form
    81,300.38/121,952.73 = 22,137.26/x
  3. Step 3: Cross multiply
    81,300.38x = 121,952.73 × 22,137.26
  4. Step 4: Simplify right side
    81,300.38x = 2,699,699,291.72
  5. Step 5: Solve for x
    x = 2,699,699,291.72/81,300.38
  6. Step 6: Final answer
    x = 33,206.48

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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.