Home / 81,165.48-111,917.22-52,447.32

Finding the Fourth Proportional to 81,165.48, 111,917.22 and 52,447.32

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Solution

The fourth proportional to 81,165.48, 111,917.22 and 52,447.32 is: 72,318.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,165.48 : 111,917.22 = 52,447.32 : x
  2. Step 2: Convert to fraction form
    81,165.48/111,917.22 = 52,447.32/x
  3. Step 3: Cross multiply
    81,165.48x = 111,917.22 × 52,447.32
  4. Step 4: Simplify right side
    81,165.48x = 5,869,758,250.85
  5. Step 5: Solve for x
    x = 5,869,758,250.85/81,165.48
  6. Step 6: Final answer
    x = 72,318.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.