Home / 84,134.84-126,187.67-21,805.34

Finding the Fourth Proportional to 84,134.84, 126,187.67 and 21,805.34

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Solution

The fourth proportional to 84,134.84, 126,187.67 and 21,805.34 is: 32,704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,134.84 : 126,187.67 = 21,805.34 : x
  2. Step 2: Convert to fraction form
    84,134.84/126,187.67 = 21,805.34/x
  3. Step 3: Cross multiply
    84,134.84x = 126,187.67 × 21,805.34
  4. Step 4: Simplify right side
    84,134.84x = 2,751,564,471.73
  5. Step 5: Solve for x
    x = 2,751,564,471.73/84,134.84
  6. Step 6: Final answer
    x = 32,704.22

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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.