Home / 81,588.54-122,349.58-25,409.76

Finding the Fourth Proportional to 81,588.54, 122,349.58 and 25,409.76

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Solution

The fourth proportional to 81,588.54, 122,349.58 and 25,409.76 is: 38,104.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,588.54 : 122,349.58 = 25,409.76 : x
  2. Step 2: Convert to fraction form
    81,588.54/122,349.58 = 25,409.76/x
  3. Step 3: Cross multiply
    81,588.54x = 122,349.58 × 25,409.76
  4. Step 4: Simplify right side
    81,588.54x = 3,108,873,463.90
  5. Step 5: Solve for x
    x = 3,108,873,463.90/81,588.54
  6. Step 6: Final answer
    x = 38,104.29

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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.