Home / 81,411.30-122,246.55-55,232.10

Finding the Fourth Proportional to 81,411.30, 122,246.55 and 55,232.10

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Solution

The fourth proportional to 81,411.30, 122,246.55 and 55,232.10 is: 82,936.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,411.30 : 122,246.55 = 55,232.10 : x
  2. Step 2: Convert to fraction form
    81,411.30/122,246.55 = 55,232.10/x
  3. Step 3: Cross multiply
    81,411.30x = 122,246.55 × 55,232.10
  4. Step 4: Simplify right side
    81,411.30x = 6,751,933,674.26
  5. Step 5: Solve for x
    x = 6,751,933,674.26/81,411.30
  6. Step 6: Final answer
    x = 82,936.07

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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.