Home / 66,033.36-99,040.26-21,664.80

Finding the Fourth Proportional to 66,033.36, 99,040.26 and 21,664.80

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Solution

The fourth proportional to 66,033.36, 99,040.26 and 21,664.80 is: 32,493.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,033.36 : 99,040.26 = 21,664.80 : x
  2. Step 2: Convert to fraction form
    66,033.36/99,040.26 = 21,664.80/x
  3. Step 3: Cross multiply
    66,033.36x = 99,040.26 × 21,664.80
  4. Step 4: Simplify right side
    66,033.36x = 2,145,687,424.85
  5. Step 5: Solve for x
    x = 2,145,687,424.85/66,033.36
  6. Step 6: Final answer
    x = 32,493.99

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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.