Home / 84,265.56-126,405.60-21,936

Finding the Fourth Proportional to 84,265.56, 126,405.60 and 21,936

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Solution

The fourth proportional to 84,265.56, 126,405.60 and 21,936 is: 32,905.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,265.56 : 126,405.60 = 21,936 : x
  2. Step 2: Convert to fraction form
    84,265.56/126,405.60 = 21,936/x
  3. Step 3: Cross multiply
    84,265.56x = 126,405.60 × 21,936
  4. Step 4: Simplify right side
    84,265.56x = 2,772,833,241.60
  5. Step 5: Solve for x
    x = 2,772,833,241.60/84,265.56
  6. Step 6: Final answer
    x = 32,905.89

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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.