Home / 66,182.50-99,286.05-21,812.37

Finding the Fourth Proportional to 66,182.50, 99,286.05 and 21,812.37

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Solution

The fourth proportional to 66,182.50, 99,286.05 and 21,812.37 is: 32,722.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,182.50 : 99,286.05 = 21,812.37 : x
  2. Step 2: Convert to fraction form
    66,182.50/99,286.05 = 21,812.37/x
  3. Step 3: Cross multiply
    66,182.50x = 99,286.05 × 21,812.37
  4. Step 4: Simplify right side
    66,182.50x = 2,165,664,326.40
  5. Step 5: Solve for x
    x = 2,165,664,326.40/66,182.50
  6. Step 6: Final answer
    x = 32,722.61

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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.