Home / 81,542.82-122,281.44-25,364.28

Finding the Fourth Proportional to 81,542.82, 122,281.44 and 25,364.28

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Solution

The fourth proportional to 81,542.82, 122,281.44 and 25,364.28 is: 38,036.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,542.82 : 122,281.44 = 25,364.28 : x
  2. Step 2: Convert to fraction form
    81,542.82/122,281.44 = 25,364.28/x
  3. Step 3: Cross multiply
    81,542.82x = 122,281.44 × 25,364.28
  4. Step 4: Simplify right side
    81,542.82x = 3,101,580,682.96
  5. Step 5: Solve for x
    x = 3,101,580,682.96/81,542.82
  6. Step 6: Final answer
    x = 38,036.22

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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.