Home / 85,562.43-128,333.83-22,388.66

Finding the Fourth Proportional to 85,562.43, 128,333.83 and 22,388.66

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Solution

The fourth proportional to 85,562.43, 128,333.83 and 22,388.66 is: 33,580.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,562.43 : 128,333.83 = 22,388.66 : x
  2. Step 2: Convert to fraction form
    85,562.43/128,333.83 = 22,388.66/x
  3. Step 3: Cross multiply
    85,562.43x = 128,333.83 × 22,388.66
  4. Step 4: Simplify right side
    85,562.43x = 2,873,222,486.37
  5. Step 5: Solve for x
    x = 2,873,222,486.37/85,562.43
  6. Step 6: Final answer
    x = 33,580.42

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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.