Home / 66,201.92-99,309.36-21,810.56

Finding the Fourth Proportional to 66,201.92, 99,309.36 and 21,810.56

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Solution

The fourth proportional to 66,201.92, 99,309.36 and 21,810.56 is: 32,717.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,201.92 : 99,309.36 = 21,810.56 : x
  2. Step 2: Convert to fraction form
    66,201.92/99,309.36 = 21,810.56/x
  3. Step 3: Cross multiply
    66,201.92x = 99,309.36 × 21,810.56
  4. Step 4: Simplify right side
    66,201.92x = 2,165,992,754.84
  5. Step 5: Solve for x
    x = 2,165,992,754.84/66,201.92
  6. Step 6: Final answer
    x = 32,717.97

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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.