Home / 84,248.06-126,372.03-21,918.56

Finding the Fourth Proportional to 84,248.06, 126,372.03 and 21,918.56

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Solution

The fourth proportional to 84,248.06, 126,372.03 and 21,918.56 is: 32,877.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248.06 : 126,372.03 = 21,918.56 : x
  2. Step 2: Convert to fraction form
    84,248.06/126,372.03 = 21,918.56/x
  3. Step 3: Cross multiply
    84,248.06x = 126,372.03 × 21,918.56
  4. Step 4: Simplify right side
    84,248.06x = 2,769,892,921.88
  5. Step 5: Solve for x
    x = 2,769,892,921.88/84,248.06
  6. Step 6: Final answer
    x = 32,877.82

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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.