Home / 81,744.89-122,664.65-34,356.24

Finding the Fourth Proportional to 81,744.89, 122,664.65 and 34,356.24

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Solution

The fourth proportional to 81,744.89, 122,664.65 and 34,356.24 is: 51,554.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,744.89 : 122,664.65 = 34,356.24 : x
  2. Step 2: Convert to fraction form
    81,744.89/122,664.65 = 34,356.24/x
  3. Step 3: Cross multiply
    81,744.89x = 122,664.65 × 34,356.24
  4. Step 4: Simplify right side
    81,744.89x = 4,214,295,983.13
  5. Step 5: Solve for x
    x = 4,214,295,983.13/81,744.89
  6. Step 6: Final answer
    x = 51,554.25

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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.