Home / 81,705.63-122,558.55-25,546.04

Finding the Fourth Proportional to 81,705.63, 122,558.55 and 25,546.04

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Solution

The fourth proportional to 81,705.63, 122,558.55 and 25,546.04 is: 38,319.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,705.63 : 122,558.55 = 25,546.04 : x
  2. Step 2: Convert to fraction form
    81,705.63/122,558.55 = 25,546.04/x
  3. Step 3: Cross multiply
    81,705.63x = 122,558.55 × 25,546.04
  4. Step 4: Simplify right side
    81,705.63x = 3,130,885,620.64
  5. Step 5: Solve for x
    x = 3,130,885,620.64/81,705.63
  6. Step 6: Final answer
    x = 38,319.09

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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.