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Finding the Fourth Proportional to 63,204.79, 94,796.81 and 21,085.20

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Solution

The fourth proportional to 63,204.79, 94,796.81 and 21,085.20 is: 31,624.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,204.79 : 94,796.81 = 21,085.20 : x
  2. Step 2: Convert to fraction form
    63,204.79/94,796.81 = 21,085.20/x
  3. Step 3: Cross multiply
    63,204.79x = 94,796.81 × 21,085.20
  4. Step 4: Simplify right side
    63,204.79x = 1,998,809,118.80
  5. Step 5: Solve for x
    x = 1,998,809,118.80/63,204.79
  6. Step 6: Final answer
    x = 31,624.33

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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.