Home / 81,496.14-122,262.57-28,905.54

Finding the Fourth Proportional to 81,496.14, 122,262.57 and 28,905.54

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Solution

The fourth proportional to 81,496.14, 122,262.57 and 28,905.54 is: 43,364.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,496.14 : 122,262.57 = 28,905.54 : x
  2. Step 2: Convert to fraction form
    81,496.14/122,262.57 = 28,905.54/x
  3. Step 3: Cross multiply
    81,496.14x = 122,262.57 × 28,905.54
  4. Step 4: Simplify right side
    81,496.14x = 3,534,065,607.64
  5. Step 5: Solve for x
    x = 3,534,065,607.64/81,496.14
  6. Step 6: Final answer
    x = 43,364.82

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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.